content/browser/gpu/gpu_data_manager_impl_private.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/gpu/gpu_data_manager_impl_private.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "base/command_line.h"
  10 #include "base/metrics/field_trial.h"
  11 #include "base/metrics/histogram.h"
  12 #include "base/metrics/sparse_histogram.h"
  13 #include "base/strings/string_number_conversions.h"
  14 #include "base/strings/stringprintf.h"
  15 #include "base/sys_info.h"
  16 #include "base/trace_event/trace_event.h"
  17 #include "base/version.h"
  18 #include "cc/base/switches.h"
  19 #include "content/browser/gpu/gpu_process_host.h"
  20 #include "content/common/gpu/gpu_messages.h"
  21 #include "content/public/browser/browser_thread.h"
  22 #include "content/public/browser/gpu_data_manager_observer.h"
  23 #include "content/public/common/content_client.h"
  24 #include "content/public/common/content_constants.h"
  25 #include "content/public/common/content_switches.h"
  26 #include "content/public/common/web_preferences.h"
  27 #include "gpu/command_buffer/service/gpu_switches.h"
  28 #include "gpu/config/gpu_control_list_jsons.h"
  29 #include "gpu/config/gpu_driver_bug_workaround_type.h"
  30 #include "gpu/config/gpu_feature_type.h"
  31 #include "gpu/config/gpu_info_collector.h"
  32 #include "gpu/config/gpu_switches.h"
  33 #include "gpu/config/gpu_util.h"
  34 #include "ui/base/ui_base_switches.h"
  35 #include "ui/gl/gl_implementation.h"
  36 #include "ui/gl/gl_switches.h"
  37 #include "ui/gl/gpu_switching_manager.h"
  38
  39 #if defined(OS_MACOSX)
  40 #include <ApplicationServices/ApplicationServices.h>
  41 #endif  // OS_MACOSX
  42 #if defined(OS_WIN)
  43 #include "base/win/windows_version.h"
  44 #endif  // OS_WIN
  45 #if defined(OS_ANDROID)
  46 #include "ui/gfx/android/device_display_info.h"
  47 #endif  // OS_ANDROID
  48
  49 namespace content {
  50
  51 namespace {
  52
  53 enum GpuFeatureStatus {
  54     kGpuFeatureEnabled = 0,
  55     kGpuFeatureBlacklisted = 1,
  56     kGpuFeatureDisabled = 2,  // disabled by user but not blacklisted
  57     kGpuFeatureNumStatus
  58 };
  59
  60 #if defined(OS_WIN)
  61
  62 enum WinSubVersion {
  63   kWinOthers = 0,
  64   kWinXP,
  65   kWinVista,
  66   kWin7,
  67   kWin8,
  68   kNumWinSubVersions
  69 };
  70
  71 int GetGpuBlacklistHistogramValueWin(GpuFeatureStatus status) {
  72   static WinSubVersion sub_version = kNumWinSubVersions;
  73   if (sub_version == kNumWinSubVersions) {
  74     sub_version = kWinOthers;
  75     std::string version_str = base::SysInfo::OperatingSystemVersion();
  76     size_t pos = version_str.find_first_not_of("0123456789.");
  77     if (pos != std::string::npos)
  78       version_str = version_str.substr(0, pos);
  79     Version os_version(version_str);
  80     if (os_version.IsValid() && os_version.components().size() >= 2) {
  81       const std::vector<uint32_t>& version_numbers = os_version.components();
  82       if (version_numbers[0] == 5)
  83         sub_version = kWinXP;
  84       else if (version_numbers[0] == 6 && version_numbers[1] == 0)
  85         sub_version = kWinVista;
  86       else if (version_numbers[0] == 6 && version_numbers[1] == 1)
  87         sub_version = kWin7;
  88       else if (version_numbers[0] == 6 && version_numbers[1] == 2)
  89         sub_version = kWin8;
  90     }
  91   }
  92   int entry_index = static_cast<int>(sub_version) * kGpuFeatureNumStatus;
  93   switch (status) {
  94     case kGpuFeatureEnabled:
  95       break;
  96     case kGpuFeatureBlacklisted:
  97       entry_index++;
  98       break;
  99     case kGpuFeatureDisabled:
 100       entry_index += 2;
 101       break;
 102   }
 103   return entry_index;
 104 }
 105 #endif  // OS_WIN
 106
 107 // Send UMA histograms about the enabled features and GPU properties.
 108 void UpdateStats(const gpu::GPUInfo& gpu_info,
 109                  const gpu::GpuBlacklist* blacklist,
 110                  const std::set<int>& blacklisted_features) {
 111   uint32 max_entry_id = blacklist->max_entry_id();
 112   if (max_entry_id == 0) {
 113     // GPU Blacklist was not loaded.  No need to go further.
 114     return;
 115   }
 116
 117   const base::CommandLine& command_line =
 118       *base::CommandLine::ForCurrentProcess();
 119   bool disabled = false;
 120
 121   // Use entry 0 to capture the total number of times that data
 122   // was recorded in this histogram in order to have a convenient
 123   // denominator to compute blacklist percentages for the rest of the
 124   // entries.
 125   UMA_HISTOGRAM_ENUMERATION("GPU.BlacklistTestResultsPerEntry",
 126       0, max_entry_id + 1);
 127
 128   if (blacklisted_features.size() != 0) {
 129     std::vector<uint32> flag_entries;
 130     blacklist->GetDecisionEntries(&flag_entries, disabled);
 131     DCHECK_GT(flag_entries.size(), 0u);
 132     for (size_t i = 0; i < flag_entries.size(); ++i) {
 133       UMA_HISTOGRAM_ENUMERATION("GPU.BlacklistTestResultsPerEntry",
 134           flag_entries[i], max_entry_id + 1);
 135     }
 136   }
 137
 138   // This counts how many users are affected by a disabled entry - this allows
 139   // us to understand the impact of an entry before enable it.
 140   std::vector<uint32> flag_disabled_entries;
 141   disabled = true;
 142   blacklist->GetDecisionEntries(&flag_disabled_entries, disabled);
 143   for (uint32 disabled_entry : flag_disabled_entries) {
 144     UMA_HISTOGRAM_ENUMERATION("GPU.BlacklistTestResultsPerDisabledEntry",
 145         disabled_entry, max_entry_id + 1);
 146   }
 147
 148   const gpu::GpuFeatureType kGpuFeatures[] = {
 149       gpu::GPU_FEATURE_TYPE_ACCELERATED_2D_CANVAS,
 150       gpu::GPU_FEATURE_TYPE_GPU_COMPOSITING, gpu::GPU_FEATURE_TYPE_WEBGL};
 151   const std::string kGpuBlacklistFeatureHistogramNames[] = {
 152       "GPU.BlacklistFeatureTestResults.Accelerated2dCanvas",
 153       "GPU.BlacklistFeatureTestResults.GpuCompositing",
 154       "GPU.BlacklistFeatureTestResults.Webgl", };
 155   const bool kGpuFeatureUserFlags[] = {
 156       command_line.HasSwitch(switches::kDisableAccelerated2dCanvas),
 157       command_line.HasSwitch(switches::kDisableGpu),
 158       command_line.HasSwitch(switches::kDisableExperimentalWebGL), };
 159 #if defined(OS_WIN)
 160   const std::string kGpuBlacklistFeatureHistogramNamesWin[] = {
 161       "GPU.BlacklistFeatureTestResultsWindows.Accelerated2dCanvas",
 162       "GPU.BlacklistFeatureTestResultsWindows.GpuCompositing",
 163       "GPU.BlacklistFeatureTestResultsWindows.Webgl", };
 164 #endif
 165   const size_t kNumFeatures =
 166       sizeof(kGpuFeatures) / sizeof(gpu::GpuFeatureType);
 167   for (size_t i = 0; i < kNumFeatures; ++i) {
 168     // We can't use UMA_HISTOGRAM_ENUMERATION here because the same name is
 169     // expected if the macro is used within a loop.
 170     GpuFeatureStatus value = kGpuFeatureEnabled;
 171     if (blacklisted_features.count(kGpuFeatures[i]))
 172       value = kGpuFeatureBlacklisted;
 173     else if (kGpuFeatureUserFlags[i])
 174       value = kGpuFeatureDisabled;
 175     base::HistogramBase* histogram_pointer = base::LinearHistogram::FactoryGet(
 176         kGpuBlacklistFeatureHistogramNames[i],
 177         1, kGpuFeatureNumStatus, kGpuFeatureNumStatus + 1,
 178         base::HistogramBase::kUmaTargetedHistogramFlag);
 179     histogram_pointer->Add(value);
 180 #if defined(OS_WIN)
 181     histogram_pointer = base::LinearHistogram::FactoryGet(
 182         kGpuBlacklistFeatureHistogramNamesWin[i],
 183         1, kNumWinSubVersions * kGpuFeatureNumStatus,
 184         kNumWinSubVersions * kGpuFeatureNumStatus + 1,
 185         base::HistogramBase::kUmaTargetedHistogramFlag);
 186     histogram_pointer->Add(GetGpuBlacklistHistogramValueWin(value));
 187 #endif
 188   }
 189
 190   UMA_HISTOGRAM_SPARSE_SLOWLY("GPU.GLResetNotificationStrategy",
 191       gpu_info.gl_reset_notification_strategy);
 192 }
 193
 194 // Combine the integers into a string, seperated by ','.
 195 std::string IntSetToString(const std::set<int>& list) {
 196   std::string rt;
 197   for (std::set<int>::const_iterator it = list.begin();
 198        it != list.end(); ++it) {
 199     if (!rt.empty())
 200       rt += ",";
 201     rt += base::IntToString(*it);
 202   }
 203   return rt;
 204 }
 205
 206 #if defined(OS_MACOSX)
 207 void DisplayReconfigCallback(CGDirectDisplayID display,
 208                              CGDisplayChangeSummaryFlags flags,
 209                              void* gpu_data_manager) {
 210   if (flags == kCGDisplayBeginConfigurationFlag)
 211     return; // This call contains no information about the display change
 212
 213   GpuDataManagerImpl* manager =
 214       reinterpret_cast<GpuDataManagerImpl*>(gpu_data_manager);
 215   DCHECK(manager);
 216
 217   // Display change.
 218   bool display_changed = false;
 219   uint32_t displayCount;
 220   CGGetActiveDisplayList(0, NULL, &displayCount);
 221   if (displayCount != manager->GetDisplayCount()) {
 222     manager->SetDisplayCount(displayCount);
 223     display_changed = true;
 224   }
 225
 226   // Gpu change.
 227   bool gpu_changed = false;
 228   if (flags & kCGDisplayAddFlag) {
 229     uint32 vendor_id, device_id;
 230     if (gpu::CollectGpuID(&vendor_id, &device_id) == gpu::kCollectInfoSuccess) {
 231       gpu_changed = manager->UpdateActiveGpu(vendor_id, device_id);
 232     }
 233   }
 234
 235   if (display_changed || gpu_changed)
 236     manager->HandleGpuSwitch();
 237 }
 238 #endif  // OS_MACOSX
 239
 240 // Block all domains' use of 3D APIs for this many milliseconds if
 241 // approaching a threshold where system stability might be compromised.
 242 const int64 kBlockAllDomainsMs = 10000;
 243 const int kNumResetsWithinDuration = 1;
 244
 245 // Enums for UMA histograms.
 246 enum BlockStatusHistogram {
 247   BLOCK_STATUS_NOT_BLOCKED,
 248   BLOCK_STATUS_SPECIFIC_DOMAIN_BLOCKED,
 249   BLOCK_STATUS_ALL_DOMAINS_BLOCKED,
 250   BLOCK_STATUS_MAX
 251 };
 252
 253 }  // namespace anonymous
 254
 255 void GpuDataManagerImplPrivate::InitializeForTesting(
 256     const std::string& gpu_blacklist_json,
 257     const gpu::GPUInfo& gpu_info) {
 258   // This function is for testing only, so disable histograms.
 259   update_histograms_ = false;
 260
 261   // Prevent all further initialization.
 262   finalized_ = true;
 263
 264   InitializeImpl(gpu_blacklist_json, std::string(), gpu_info);
 265 }
 266
 267 bool GpuDataManagerImplPrivate::IsFeatureBlacklisted(int feature) const {
 268 #if defined(OS_CHROMEOS)
 269   if (feature == gpu::GPU_FEATURE_TYPE_PANEL_FITTING &&
 270       base::CommandLine::ForCurrentProcess()->HasSwitch(
 271           switches::kDisablePanelFitting)) {
 272     return true;
 273   }
 274 #endif  // OS_CHROMEOS
 275   if (use_swiftshader_ || ShouldUseWarp()) {
 276     // Skia's software rendering is probably more efficient than going through
 277     // software emulation of the GPU, so use that.
 278     if (feature == gpu::GPU_FEATURE_TYPE_ACCELERATED_2D_CANVAS)
 279       return true;
 280     return false;
 281   }
 282
 283   return (blacklisted_features_.count(feature) == 1);
 284 }
 285
 286 bool GpuDataManagerImplPrivate::IsDriverBugWorkaroundActive(int feature) const {
 287   return (gpu_driver_bugs_.count(feature) == 1);
 288 }
 289
 290 size_t GpuDataManagerImplPrivate::GetBlacklistedFeatureCount() const {
 291   if (use_swiftshader_ || ShouldUseWarp())
 292     return 1;
 293   return blacklisted_features_.size();
 294 }
 295
 296 void GpuDataManagerImplPrivate::SetDisplayCount(unsigned int display_count) {
 297   display_count_ = display_count;
 298 }
 299
 300 unsigned int GpuDataManagerImplPrivate::GetDisplayCount() const {
 301   return display_count_;
 302 }
 303
 304 gpu::GPUInfo GpuDataManagerImplPrivate::GetGPUInfo() const {
 305   return gpu_info_;
 306 }
 307
 308 void GpuDataManagerImplPrivate::GetGpuProcessHandles(
 309     const GpuDataManager::GetGpuProcessHandlesCallback& callback) const {
 310   GpuProcessHost::GetProcessHandles(callback);
 311 }
 312
 313 bool GpuDataManagerImplPrivate::GpuAccessAllowed(
 314     std::string* reason) const {
 315   if (use_swiftshader_ || ShouldUseWarp())
 316     return true;
 317
 318   if (!gpu_process_accessible_) {
 319     if (reason) {
 320       *reason = "GPU process launch failed.";
 321     }
 322     return false;
 323   }
 324
 325   if (card_blacklisted_) {
 326     if (reason) {
 327       *reason = "GPU access is disabled ";
 328       base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 329       if (command_line->HasSwitch(switches::kDisableGpu))
 330         *reason += "through commandline switch --disable-gpu.";
 331       else
 332         *reason += "in chrome://settings.";
 333     }
 334     return false;
 335   }
 336
 337   // We only need to block GPU process if more features are disallowed other
 338   // than those in the preliminary gpu feature flags because the latter work
 339   // through renderer commandline switches.
 340   std::set<int> features = preliminary_blacklisted_features_;
 341   gpu::MergeFeatureSets(&features, blacklisted_features_);
 342   if (features.size() > preliminary_blacklisted_features_.size()) {
 343     if (reason) {
 344       *reason = "Features are disabled upon full but not preliminary GPU info.";
 345     }
 346     return false;
 347   }
 348
 349   if (blacklisted_features_.size() == gpu::NUMBER_OF_GPU_FEATURE_TYPES) {
 350     // On Linux, we use cached GL strings to make blacklist decsions at browser
 351     // startup time. We need to launch the GPU process to validate these
 352     // strings even if all features are blacklisted. If all GPU features are
 353     // disabled, the GPU process will only initialize GL bindings, create a GL
 354     // context, and collect full GPU info.
 355 #if !defined(OS_LINUX)
 356     if (reason) {
 357       *reason = "All GPU features are blacklisted.";
 358     }
 359     return false;
 360 #endif
 361   }
 362
 363   return true;
 364 }
 365
 366 void GpuDataManagerImplPrivate::RequestCompleteGpuInfoIfNeeded() {
 367   if (complete_gpu_info_already_requested_ || IsCompleteGpuInfoAvailable())
 368     return;
 369   complete_gpu_info_already_requested_ = true;
 370
 371   GpuProcessHost::SendOnIO(
 372 #if defined(OS_WIN)
 373       GpuProcessHost::GPU_PROCESS_KIND_UNSANDBOXED,
 374 #else
 375       GpuProcessHost::GPU_PROCESS_KIND_SANDBOXED,
 376 #endif
 377       CAUSE_FOR_GPU_LAUNCH_GPUDATAMANAGER_REQUESTCOMPLETEGPUINFOIFNEEDED,
 378       new GpuMsg_CollectGraphicsInfo());
 379 }
 380
 381 bool GpuDataManagerImplPrivate::IsEssentialGpuInfoAvailable() const {
 382   if (gpu_info_.basic_info_state == gpu::kCollectInfoNone ||
 383       gpu_info_.context_info_state == gpu::kCollectInfoNone) {
 384     return false;
 385   }
 386   return true;
 387 }
 388
 389 bool GpuDataManagerImplPrivate::IsCompleteGpuInfoAvailable() const {
 390 #if defined(OS_WIN)
 391   if (gpu_info_.dx_diagnostics_info_state == gpu::kCollectInfoNone)
 392     return false;
 393 #endif
 394   return IsEssentialGpuInfoAvailable();
 395 }
 396
 397 void GpuDataManagerImplPrivate::RequestVideoMemoryUsageStatsUpdate() const {
 398   GpuProcessHost::SendOnIO(
 399       GpuProcessHost::GPU_PROCESS_KIND_SANDBOXED,
 400       CAUSE_FOR_GPU_LAUNCH_NO_LAUNCH,
 401       new GpuMsg_GetVideoMemoryUsageStats());
 402 }
 403
 404 bool GpuDataManagerImplPrivate::ShouldUseSwiftShader() const {
 405   return use_swiftshader_;
 406 }
 407
 408 void GpuDataManagerImplPrivate::RegisterSwiftShaderPath(
 409     const base::FilePath& path) {
 410   swiftshader_path_ = path;
 411   EnableSwiftShaderIfNecessary();
 412 }
 413
 414 bool GpuDataManagerImplPrivate::ShouldUseWarp() const {
 415   return use_warp_ ||
 416          base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kUseWarp);
 417 }
 418
 419 void GpuDataManagerImplPrivate::AddObserver(GpuDataManagerObserver* observer) {
 420   GpuDataManagerImpl::UnlockedSession session(owner_);
 421   observer_list_->AddObserver(observer);
 422 }
 423
 424 void GpuDataManagerImplPrivate::RemoveObserver(
 425     GpuDataManagerObserver* observer) {
 426   GpuDataManagerImpl::UnlockedSession session(owner_);
 427   observer_list_->RemoveObserver(observer);
 428 }
 429
 430 void GpuDataManagerImplPrivate::UnblockDomainFrom3DAPIs(const GURL& url) {
 431   // This method must do two things:
 432   //
 433   //  1. If the specific domain is blocked, then unblock it.
 434   //
 435   //  2. Reset our notion of how many GPU resets have occurred recently.
 436   //     This is necessary even if the specific domain was blocked.
 437   //     Otherwise, if we call Are3DAPIsBlocked with the same domain right
 438   //     after unblocking it, it will probably still be blocked because of
 439   //     the recent GPU reset caused by that domain.
 440   //
 441   // These policies could be refined, but at a certain point the behavior
 442   // will become difficult to explain.
 443   std::string domain = GetDomainFromURL(url);
 444
 445   blocked_domains_.erase(domain);
 446   timestamps_of_gpu_resets_.clear();
 447 }
 448
 449 void GpuDataManagerImplPrivate::DisableGpuWatchdog() {
 450   GpuProcessHost::SendOnIO(
 451       GpuProcessHost::GPU_PROCESS_KIND_SANDBOXED,
 452       CAUSE_FOR_GPU_LAUNCH_NO_LAUNCH,
 453       new GpuMsg_DisableWatchdog);
 454 }
 455
 456 void GpuDataManagerImplPrivate::SetGLStrings(const std::string& gl_vendor,
 457                                              const std::string& gl_renderer,
 458                                              const std::string& gl_version) {
 459   if (gl_vendor.empty() && gl_renderer.empty() && gl_version.empty())
 460     return;
 461
 462   // If GPUInfo already got GL strings, do nothing.  This is for the rare
 463   // situation where GPU process collected GL strings before this call.
 464   if (!gpu_info_.gl_vendor.empty() ||
 465       !gpu_info_.gl_renderer.empty() ||
 466       !gpu_info_.gl_version.empty())
 467     return;
 468
 469   gpu::GPUInfo gpu_info = gpu_info_;
 470
 471   gpu_info.gl_vendor = gl_vendor;
 472   gpu_info.gl_renderer = gl_renderer;
 473   gpu_info.gl_version = gl_version;
 474
 475   gpu::CollectDriverInfoGL(&gpu_info);
 476
 477   UpdateGpuInfo(gpu_info);
 478   UpdateGpuSwitchingManager(gpu_info);
 479   UpdatePreliminaryBlacklistedFeatures();
 480 }
 481
 482 void GpuDataManagerImplPrivate::GetGLStrings(std::string* gl_vendor,
 483                                              std::string* gl_renderer,
 484                                              std::string* gl_version) {
 485   DCHECK(gl_vendor && gl_renderer && gl_version);
 486
 487   *gl_vendor = gpu_info_.gl_vendor;
 488   *gl_renderer = gpu_info_.gl_renderer;
 489   *gl_version = gpu_info_.gl_version;
 490 }
 491
 492 void GpuDataManagerImplPrivate::Initialize() {
 493   TRACE_EVENT0("startup", "GpuDataManagerImpl::Initialize");
 494   if (finalized_) {
 495     DVLOG(0) << "GpuDataManagerImpl marked as finalized; skipping Initialize";
 496     return;
 497   }
 498
 499   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 500   if (command_line->HasSwitch(switches::kSkipGpuDataLoading))
 501     return;
 502
 503   gpu::GPUInfo gpu_info;
 504   if (command_line->GetSwitchValueASCII(
 505           switches::kUseGL) == gfx::kGLImplementationOSMesaName) {
 506     // If using the OSMesa GL implementation, use fake vendor and device ids to
 507     // make sure it never gets blacklisted. This is better than simply
 508     // cancelling GPUInfo gathering as it allows us to proceed with loading the
 509     // blacklist below which may have non-device specific entries we want to
 510     // apply anyways (e.g., OS version blacklisting).
 511     gpu_info.gpu.vendor_id = 0xffff;
 512     gpu_info.gpu.device_id = 0xffff;
 513
 514     // Also declare the driver_vendor to be osmesa to be able to specify
 515     // exceptions based on driver_vendor==osmesa for some blacklist rules.
 516     gpu_info.driver_vendor = gfx::kGLImplementationOSMesaName;
 517   } else {
 518     TRACE_EVENT0("startup",
 519       "GpuDataManagerImpl::Initialize:CollectBasicGraphicsInfo");
 520     gpu::CollectBasicGraphicsInfo(&gpu_info);
 521   }
 522 #if defined(ARCH_CPU_X86_FAMILY)
 523   if (!gpu_info.gpu.vendor_id || !gpu_info.gpu.device_id) {
 524     gpu_info.context_info_state = gpu::kCollectInfoNonFatalFailure;
 525 #if defined(OS_WIN)
 526     gpu_info.dx_diagnostics_info_state = gpu::kCollectInfoNonFatalFailure;
 527 #endif  // OS_WIN
 528   }
 529 #endif  // ARCH_CPU_X86_FAMILY
 530
 531   std::string gpu_blacklist_string;
 532   std::string gpu_driver_bug_list_string;
 533   if (!command_line->HasSwitch(switches::kIgnoreGpuBlacklist) &&
 534       !command_line->HasSwitch(switches::kUseGpuInTests)) {
 535     gpu_blacklist_string = gpu::kSoftwareRenderingListJson;
 536   }
 537   if (!command_line->HasSwitch(switches::kDisableGpuDriverBugWorkarounds)) {
 538     gpu_driver_bug_list_string = gpu::kGpuDriverBugListJson;
 539   }
 540   InitializeImpl(gpu_blacklist_string,
 541                  gpu_driver_bug_list_string,
 542                  gpu_info);
 543
 544   if (command_line->HasSwitch(switches::kSingleProcess) ||
 545       command_line->HasSwitch(switches::kInProcessGPU)) {
 546     command_line->AppendSwitch(switches::kDisableGpuWatchdog);
 547     AppendGpuCommandLine(command_line);
 548   }
 549 }
 550
 551 void GpuDataManagerImplPrivate::UpdateGpuInfoHelper() {
 552   GetContentClient()->SetGpuInfo(gpu_info_);
 553
 554   if (gpu_blacklist_) {
 555     std::set<int> features = gpu_blacklist_->MakeDecision(
 556         gpu::GpuControlList::kOsAny, std::string(), gpu_info_);
 557     if (update_histograms_)
 558       UpdateStats(gpu_info_, gpu_blacklist_.get(), features);
 559
 560     UpdateBlacklistedFeatures(features);
 561   }
 562   if (gpu_driver_bug_list_) {
 563     gpu_driver_bugs_ = gpu_driver_bug_list_->MakeDecision(
 564         gpu::GpuControlList::kOsAny, std::string(), gpu_info_);
 565
 566     disabled_extensions_ =
 567         JoinString(gpu_driver_bug_list_->GetDisabledExtensions(), ' ');
 568   }
 569   gpu::GpuDriverBugList::AppendWorkaroundsFromCommandLine(
 570       &gpu_driver_bugs_, *base::CommandLine::ForCurrentProcess());
 571
 572   // We have to update GpuFeatureType before notify all the observers.
 573   NotifyGpuInfoUpdate();
 574 }
 575
 576 void GpuDataManagerImplPrivate::UpdateGpuInfo(const gpu::GPUInfo& gpu_info) {
 577   // No further update of gpu_info if falling back to SwiftShader.
 578   if (use_swiftshader_ || ShouldUseWarp())
 579     return;
 580
 581   bool was_info_available = IsCompleteGpuInfoAvailable();
 582   gpu::MergeGPUInfo(&gpu_info_, gpu_info);
 583   if (IsCompleteGpuInfoAvailable()) {
 584     complete_gpu_info_already_requested_ = true;
 585   } else if (was_info_available) {
 586     // Allow future requests to go through properly.
 587     complete_gpu_info_already_requested_ = false;
 588   }
 589
 590   UpdateGpuInfoHelper();
 591 }
 592
 593 void GpuDataManagerImplPrivate::UpdateVideoMemoryUsageStats(
 594     const GPUVideoMemoryUsageStats& video_memory_usage_stats) {
 595   GpuDataManagerImpl::UnlockedSession session(owner_);
 596   observer_list_->Notify(FROM_HERE,
 597                          &GpuDataManagerObserver::OnVideoMemoryUsageStatsUpdate,
 598                          video_memory_usage_stats);
 599 }
 600
 601 void GpuDataManagerImplPrivate::AppendRendererCommandLine(
 602     base::CommandLine* command_line) const {
 603   DCHECK(command_line);
 604
 605   if (ShouldDisableAcceleratedVideoDecode(command_line))
 606     command_line->AppendSwitch(switches::kDisableAcceleratedVideoDecode);
 607 #if defined(ENABLE_WEBRTC)
 608   if (IsFeatureBlacklisted(gpu::GPU_FEATURE_TYPE_ACCELERATED_VIDEO_ENCODE) &&
 609       !command_line->HasSwitch(switches::kDisableWebRtcHWEncoding))
 610     command_line->AppendSwitch(switches::kDisableWebRtcHWEncoding);
 611 #endif
 612
 613 #if defined(USE_AURA)
 614   if (!CanUseGpuBrowserCompositor())
 615     command_line->AppendSwitch(switches::kDisableGpuCompositing);
 616 #endif
 617 }
 618
 619 void GpuDataManagerImplPrivate::AppendGpuCommandLine(
 620     base::CommandLine* command_line) const {
 621   DCHECK(command_line);
 622
 623   std::string use_gl =
 624       base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
 625           switches::kUseGL);
 626   base::FilePath swiftshader_path =
 627       base::CommandLine::ForCurrentProcess()->GetSwitchValuePath(
 628           switches::kSwiftShaderPath);
 629   if (gpu_driver_bugs_.find(gpu::DISABLE_D3D11) != gpu_driver_bugs_.end())
 630     command_line->AppendSwitch(switches::kDisableD3D11);
 631   if (use_swiftshader_) {
 632     command_line->AppendSwitchASCII(switches::kUseGL, "swiftshader");
 633     if (swiftshader_path.empty())
 634       swiftshader_path = swiftshader_path_;
 635   } else if ((IsFeatureBlacklisted(gpu::GPU_FEATURE_TYPE_WEBGL) ||
 636               IsFeatureBlacklisted(gpu::GPU_FEATURE_TYPE_GPU_COMPOSITING) ||
 637               IsFeatureBlacklisted(
 638                   gpu::GPU_FEATURE_TYPE_ACCELERATED_2D_CANVAS)) &&
 639              (use_gl == "any")) {
 640     command_line->AppendSwitchASCII(
 641         switches::kUseGL, gfx::kGLImplementationOSMesaName);
 642   } else if (!use_gl.empty()) {
 643     command_line->AppendSwitchASCII(switches::kUseGL, use_gl);
 644   }
 645   if (ui::GpuSwitchingManager::GetInstance()->SupportsDualGpus())
 646     command_line->AppendSwitchASCII(switches::kSupportsDualGpus, "true");
 647   else
 648     command_line->AppendSwitchASCII(switches::kSupportsDualGpus, "false");
 649
 650   if (!swiftshader_path.empty()) {
 651     command_line->AppendSwitchPath(switches::kSwiftShaderPath,
 652                                    swiftshader_path);
 653   }
 654
 655   if (!gpu_driver_bugs_.empty()) {
 656     command_line->AppendSwitchASCII(switches::kGpuDriverBugWorkarounds,
 657                                     IntSetToString(gpu_driver_bugs_));
 658   }
 659
 660   if (ShouldDisableAcceleratedVideoDecode(command_line)) {
 661     command_line->AppendSwitch(switches::kDisableAcceleratedVideoDecode);
 662   }
 663 #if defined(ENABLE_WEBRTC)
 664   if (IsFeatureBlacklisted(gpu::GPU_FEATURE_TYPE_ACCELERATED_VIDEO_ENCODE) &&
 665       !command_line->HasSwitch(switches::kDisableWebRtcHWEncoding)) {
 666     command_line->AppendSwitch(switches::kDisableWebRtcHWEncoding);
 667   }
 668 #endif
 669
 670   // Pass GPU and driver information to GPU process. We try to avoid full GPU
 671   // info collection at GPU process startup, but we need gpu vendor_id,
 672   // device_id, driver_vendor, driver_version for deciding whether we need to
 673   // collect full info (on Linux) and for crash reporting purpose.
 674   command_line->AppendSwitchASCII(switches::kGpuVendorID,
 675       base::StringPrintf("0x%04x", gpu_info_.gpu.vendor_id));
 676   command_line->AppendSwitchASCII(switches::kGpuDeviceID,
 677       base::StringPrintf("0x%04x", gpu_info_.gpu.device_id));
 678   command_line->AppendSwitchASCII(switches::kGpuDriverVendor,
 679       gpu_info_.driver_vendor);
 680   command_line->AppendSwitchASCII(switches::kGpuDriverVersion,
 681       gpu_info_.driver_version);
 682
 683   if (ShouldUseWarp())
 684     command_line->AppendSwitch(switches::kUseWarp);
 685 }
 686
 687 void GpuDataManagerImplPrivate::AppendPluginCommandLine(
 688     base::CommandLine* command_line) const {
 689   DCHECK(command_line);
 690
 691 #if defined(OS_MACOSX)
 692   // TODO(jbauman): Add proper blacklist support for core animation plugins so
 693   // special-casing this video card won't be necessary. See
 694   // http://crbug.com/134015
 695   if (IsFeatureBlacklisted(gpu::GPU_FEATURE_TYPE_GPU_COMPOSITING)) {
 696     if (!command_line->HasSwitch(
 697            switches::kDisableCoreAnimationPlugins))
 698       command_line->AppendSwitch(
 699           switches::kDisableCoreAnimationPlugins);
 700   }
 701 #endif
 702 }
 703
 704 void GpuDataManagerImplPrivate::UpdateRendererWebPrefs(
 705     WebPreferences* prefs) const {
 706   DCHECK(prefs);
 707
 708   if (IsFeatureBlacklisted(gpu::GPU_FEATURE_TYPE_WEBGL)) {
 709     prefs->experimental_webgl_enabled = false;
 710     prefs->pepper_3d_enabled = false;
 711   }
 712   if (IsFeatureBlacklisted(gpu::GPU_FEATURE_TYPE_FLASH3D))
 713     prefs->flash_3d_enabled = false;
 714   if (IsFeatureBlacklisted(gpu::GPU_FEATURE_TYPE_FLASH_STAGE3D)) {
 715     prefs->flash_stage3d_enabled = false;
 716     prefs->flash_stage3d_baseline_enabled = false;
 717   }
 718   if (IsFeatureBlacklisted(gpu::GPU_FEATURE_TYPE_FLASH_STAGE3D_BASELINE))
 719     prefs->flash_stage3d_baseline_enabled = false;
 720   if (IsFeatureBlacklisted(gpu::GPU_FEATURE_TYPE_ACCELERATED_2D_CANVAS))
 721     prefs->accelerated_2d_canvas_enabled = false;
 722   // TODO(senorblanco): The renderer shouldn't have an extra setting
 723   // for this, but should rely on extension availability.
 724   // Note that |gl_multisampling_enabled| only affects the decoder's
 725   // default framebuffer allocation, which does not support
 726   // multisampled_render_to_texture, only msaa with explicit resolve.
 727   if (IsDriverBugWorkaroundActive(
 728           gpu::DISABLE_CHROMIUM_FRAMEBUFFER_MULTISAMPLE) ||
 729       (IsDriverBugWorkaroundActive(gpu::DISABLE_MULTIMONITOR_MULTISAMPLING) &&
 730        display_count_ > 1))
 731     prefs->gl_multisampling_enabled = false;
 732
 733 #if defined(USE_AURA)
 734   if (!CanUseGpuBrowserCompositor()) {
 735     prefs->accelerated_2d_canvas_enabled = false;
 736     prefs->pepper_3d_enabled = false;
 737   }
 738 #endif
 739
 740   const base::CommandLine* command_line =
 741       base::CommandLine::ForCurrentProcess();
 742   if (!ShouldDisableAcceleratedVideoDecode(command_line) &&
 743       !command_line->HasSwitch(switches::kDisableAcceleratedVideoDecode)) {
 744     prefs->pepper_accelerated_video_decode_enabled = true;
 745   }
 746 }
 747
 748 void GpuDataManagerImplPrivate::DisableHardwareAcceleration() {
 749   card_blacklisted_ = true;
 750
 751   for (int i = 0; i < gpu::NUMBER_OF_GPU_FEATURE_TYPES; ++i)
 752     blacklisted_features_.insert(i);
 753
 754   EnableWarpIfNecessary();
 755   EnableSwiftShaderIfNecessary();
 756   NotifyGpuInfoUpdate();
 757 }
 758
 759 std::string GpuDataManagerImplPrivate::GetBlacklistVersion() const {
 760   if (gpu_blacklist_)
 761     return gpu_blacklist_->version();
 762   return "0";
 763 }
 764
 765 std::string GpuDataManagerImplPrivate::GetDriverBugListVersion() const {
 766   if (gpu_driver_bug_list_)
 767     return gpu_driver_bug_list_->version();
 768   return "0";
 769 }
 770
 771 void GpuDataManagerImplPrivate::GetBlacklistReasons(
 772     base::ListValue* reasons) const {
 773   if (gpu_blacklist_)
 774     gpu_blacklist_->GetReasons(reasons, "disabledFeatures");
 775   if (gpu_driver_bug_list_)
 776     gpu_driver_bug_list_->GetReasons(reasons, "workarounds");
 777 }
 778
 779 std::vector<std::string>
 780 GpuDataManagerImplPrivate::GetDriverBugWorkarounds() const {
 781   std::vector<std::string> workarounds;
 782   for (std::set<int>::const_iterator it = gpu_driver_bugs_.begin();
 783        it != gpu_driver_bugs_.end(); ++it) {
 784     workarounds.push_back(
 785         gpu::GpuDriverBugWorkaroundTypeToString(
 786             static_cast<gpu::GpuDriverBugWorkaroundType>(*it)));
 787   }
 788   return workarounds;
 789 }
 790
 791 void GpuDataManagerImplPrivate::AddLogMessage(
 792     int level, const std::string& header, const std::string& message) {
 793   log_messages_.push_back(LogMessage(level, header, message));
 794 }
 795
 796 void GpuDataManagerImplPrivate::ProcessCrashed(
 797     base::TerminationStatus exit_code) {
 798   if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
 799     // Unretained is ok, because it's posted to UI thread, the thread
 800     // where the singleton GpuDataManagerImpl lives until the end.
 801     BrowserThread::PostTask(
 802         BrowserThread::UI,
 803         FROM_HERE,
 804         base::Bind(&GpuDataManagerImpl::ProcessCrashed,
 805                    base::Unretained(owner_),
 806                    exit_code));
 807     return;
 808   }
 809   {
 810     gpu_info_.process_crash_count = GpuProcessHost::gpu_crash_count();
 811     GpuDataManagerImpl::UnlockedSession session(owner_);
 812     observer_list_->Notify(
 813         FROM_HERE, &GpuDataManagerObserver::OnGpuProcessCrashed, exit_code);
 814   }
 815 }
 816
 817 base::ListValue* GpuDataManagerImplPrivate::GetLogMessages() const {
 818   base::ListValue* value = new base::ListValue;
 819   for (size_t ii = 0; ii < log_messages_.size(); ++ii) {
 820     base::DictionaryValue* dict = new base::DictionaryValue();
 821     dict->SetInteger("level", log_messages_[ii].level);
 822     dict->SetString("header", log_messages_[ii].header);
 823     dict->SetString("message", log_messages_[ii].message);
 824     value->Append(dict);
 825   }
 826   return value;
 827 }
 828
 829 void GpuDataManagerImplPrivate::HandleGpuSwitch() {
 830   GpuDataManagerImpl::UnlockedSession session(owner_);
 831   // Notify observers in the browser process.
 832   ui::GpuSwitchingManager::GetInstance()->NotifyGpuSwitched();
 833   // Pass the notification to the GPU process to notify observers there.
 834   GpuProcessHost::SendOnIO(
 835       GpuProcessHost::GPU_PROCESS_KIND_SANDBOXED,
 836       CAUSE_FOR_GPU_LAUNCH_NO_LAUNCH,
 837       new GpuMsg_GpuSwitched);
 838 }
 839
 840 bool GpuDataManagerImplPrivate::UpdateActiveGpu(
 841     uint32 vendor_id, uint32 device_id) {
 842   if (gpu_info_.gpu.vendor_id == vendor_id &&
 843       gpu_info_.gpu.device_id == device_id) {
 844     // The primary GPU is active.
 845     if (gpu_info_.gpu.active)
 846       return false;
 847     gpu_info_.gpu.active = true;
 848     for (size_t ii = 0; ii < gpu_info_.secondary_gpus.size(); ++ii)
 849       gpu_info_.secondary_gpus[ii].active = false;
 850   } else {
 851     // A secondary GPU is active.
 852     for (size_t ii = 0; ii < gpu_info_.secondary_gpus.size(); ++ii) {
 853       if (gpu_info_.secondary_gpus[ii].vendor_id == vendor_id &&
 854           gpu_info_.secondary_gpus[ii].device_id == device_id) {
 855         if (gpu_info_.secondary_gpus[ii].active)
 856           return false;
 857         gpu_info_.secondary_gpus[ii].active = true;
 858       } else {
 859         gpu_info_.secondary_gpus[ii].active = false;
 860       }
 861     }
 862     gpu_info_.gpu.active = false;
 863   }
 864   UpdateGpuInfoHelper();
 865   return true;
 866 }
 867
 868 bool GpuDataManagerImplPrivate::CanUseGpuBrowserCompositor() const {
 869   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
 870           switches::kDisableGpuCompositing))
 871     return false;
 872   if (ShouldUseWarp())
 873     return true;
 874   if (ShouldUseSwiftShader())
 875     return false;
 876   if (IsFeatureBlacklisted(gpu::GPU_FEATURE_TYPE_GPU_COMPOSITING))
 877     return false;
 878   return true;
 879 }
 880
 881
 882 bool GpuDataManagerImplPrivate::ShouldDisableAcceleratedVideoDecode(
 883     const base::CommandLine* command_line) const {
 884   // Make sure that we initialize the experiment first to make sure that
 885   // statistics are bucket correctly in all cases.
 886   // This experiment is temporary and will be removed once enough data
 887   // to resolve crbug/442039 has been collected.
 888   const std::string group_name = base::FieldTrialList::FindFullName(
 889       "DisableAcceleratedVideoDecode");
 890   if (command_line->HasSwitch(switches::kDisableAcceleratedVideoDecode)) {
 891     // It was already disabled on the command line.
 892     return false;
 893   }
 894   if (IsFeatureBlacklisted(gpu::GPU_FEATURE_TYPE_ACCELERATED_VIDEO_DECODE))
 895     return true;
 896   if (group_name == "Disabled")
 897     return true;
 898   return false;
 899 }
 900
 901 void GpuDataManagerImplPrivate::GetDisabledExtensions(
 902     std::string* disabled_extensions) const {
 903   DCHECK(disabled_extensions);
 904
 905   *disabled_extensions = disabled_extensions_;
 906 }
 907
 908 void GpuDataManagerImplPrivate::BlockDomainFrom3DAPIs(
 909     const GURL& url, GpuDataManagerImpl::DomainGuilt guilt) {
 910   BlockDomainFrom3DAPIsAtTime(url, guilt, base::Time::Now());
 911 }
 912
 913 bool GpuDataManagerImplPrivate::Are3DAPIsBlocked(const GURL& url,
 914                                                  int render_process_id,
 915                                                  int render_view_id,
 916                                                  ThreeDAPIType requester) {
 917   bool blocked = Are3DAPIsBlockedAtTime(url, base::Time::Now()) !=
 918       GpuDataManagerImpl::DOMAIN_BLOCK_STATUS_NOT_BLOCKED;
 919   if (blocked) {
 920     // Unretained is ok, because it's posted to UI thread, the thread
 921     // where the singleton GpuDataManagerImpl lives until the end.
 922     BrowserThread::PostTask(
 923         BrowserThread::UI, FROM_HERE,
 924         base::Bind(&GpuDataManagerImpl::Notify3DAPIBlocked,
 925                    base::Unretained(owner_), url, render_process_id,
 926                    render_view_id, requester));
 927   }
 928
 929   return blocked;
 930 }
 931
 932 void GpuDataManagerImplPrivate::DisableDomainBlockingFor3DAPIsForTesting() {
 933   domain_blocking_enabled_ = false;
 934 }
 935
 936 // static
 937 GpuDataManagerImplPrivate* GpuDataManagerImplPrivate::Create(
 938     GpuDataManagerImpl* owner) {
 939   return new GpuDataManagerImplPrivate(owner);
 940 }
 941
 942 GpuDataManagerImplPrivate::GpuDataManagerImplPrivate(
 943     GpuDataManagerImpl* owner)
 944     : complete_gpu_info_already_requested_(false),
 945       observer_list_(new GpuDataManagerObserverList),
 946       use_swiftshader_(false),
 947       use_warp_(false),
 948       card_blacklisted_(false),
 949       update_histograms_(true),
 950       window_count_(0),
 951       domain_blocking_enabled_(true),
 952       owner_(owner),
 953       display_count_(0),
 954       gpu_process_accessible_(true),
 955       finalized_(false) {
 956   DCHECK(owner_);
 957   const base::CommandLine* command_line =
 958       base::CommandLine::ForCurrentProcess();
 959   if (command_line->HasSwitch(switches::kDisableGpu))
 960     DisableHardwareAcceleration();
 961
 962 #if defined(OS_MACOSX)
 963   CGGetActiveDisplayList (0, NULL, &display_count_);
 964   CGDisplayRegisterReconfigurationCallback(DisplayReconfigCallback, owner_);
 965 #endif  // OS_MACOSX
 966
 967   // For testing only.
 968   if (command_line->HasSwitch(switches::kDisableDomainBlockingFor3DAPIs)) {
 969     domain_blocking_enabled_ = false;
 970   }
 971 }
 972
 973 GpuDataManagerImplPrivate::~GpuDataManagerImplPrivate() {
 974 #if defined(OS_MACOSX)
 975   CGDisplayRemoveReconfigurationCallback(DisplayReconfigCallback, owner_);
 976 #endif
 977 }
 978
 979 void GpuDataManagerImplPrivate::InitializeImpl(
 980     const std::string& gpu_blacklist_json,
 981     const std::string& gpu_driver_bug_list_json,
 982     const gpu::GPUInfo& gpu_info) {
 983   const bool log_gpu_control_list_decisions =
 984       base::CommandLine::ForCurrentProcess()->HasSwitch(
 985           switches::kLogGpuControlListDecisions);
 986
 987   if (!gpu_blacklist_json.empty()) {
 988     gpu_blacklist_.reset(gpu::GpuBlacklist::Create());
 989     if (log_gpu_control_list_decisions)
 990       gpu_blacklist_->enable_control_list_logging("gpu_blacklist");
 991     bool success = gpu_blacklist_->LoadList(
 992         gpu_blacklist_json, gpu::GpuControlList::kCurrentOsOnly);
 993     DCHECK(success);
 994   }
 995   if (!gpu_driver_bug_list_json.empty()) {
 996     gpu_driver_bug_list_.reset(gpu::GpuDriverBugList::Create());
 997     if (log_gpu_control_list_decisions)
 998       gpu_driver_bug_list_->enable_control_list_logging("gpu_driver_bug_list");
 999     bool success = gpu_driver_bug_list_->LoadList(
1000         gpu_driver_bug_list_json, gpu::GpuControlList::kCurrentOsOnly);
1001     DCHECK(success);
1002   }
1003
1004   gpu_info_ = gpu_info;
1005   UpdateGpuInfo(gpu_info);
1006   UpdateGpuSwitchingManager(gpu_info);
1007   UpdatePreliminaryBlacklistedFeatures();
1008 }
1009
1010 void GpuDataManagerImplPrivate::UpdateBlacklistedFeatures(
1011     const std::set<int>& features) {
1012   blacklisted_features_ = features;
1013
1014   // Force disable using the GPU for these features, even if they would
1015   // otherwise be allowed.
1016   if (card_blacklisted_) {
1017     blacklisted_features_.insert(gpu::GPU_FEATURE_TYPE_GPU_COMPOSITING);
1018     blacklisted_features_.insert(gpu::GPU_FEATURE_TYPE_WEBGL);
1019   }
1020
1021   EnableWarpIfNecessary();
1022   EnableSwiftShaderIfNecessary();
1023 }
1024
1025 void GpuDataManagerImplPrivate::UpdatePreliminaryBlacklistedFeatures() {
1026   preliminary_blacklisted_features_ = blacklisted_features_;
1027 }
1028
1029 void GpuDataManagerImplPrivate::UpdateGpuSwitchingManager(
1030     const gpu::GPUInfo& gpu_info) {
1031   ui::GpuSwitchingManager::GetInstance()->SetGpuCount(
1032       gpu_info.secondary_gpus.size() + 1);
1033
1034   if (ui::GpuSwitchingManager::GetInstance()->SupportsDualGpus()) {
1035     if (gpu_driver_bugs_.count(gpu::FORCE_DISCRETE_GPU) == 1)
1036       ui::GpuSwitchingManager::GetInstance()->ForceUseOfDiscreteGpu();
1037     else if (gpu_driver_bugs_.count(gpu::FORCE_INTEGRATED_GPU) == 1)
1038       ui::GpuSwitchingManager::GetInstance()->ForceUseOfIntegratedGpu();
1039   }
1040 }
1041
1042 void GpuDataManagerImplPrivate::NotifyGpuInfoUpdate() {
1043   observer_list_->Notify(FROM_HERE, &GpuDataManagerObserver::OnGpuInfoUpdate);
1044 }
1045
1046 void GpuDataManagerImplPrivate::EnableSwiftShaderIfNecessary() {
1047   if (ShouldUseWarp())
1048     return;
1049
1050   if (!GpuAccessAllowed(NULL) ||
1051       blacklisted_features_.count(gpu::GPU_FEATURE_TYPE_WEBGL)) {
1052     if (!swiftshader_path_.empty() &&
1053         !base::CommandLine::ForCurrentProcess()->HasSwitch(
1054              switches::kDisableSoftwareRasterizer))
1055       use_swiftshader_ = true;
1056   }
1057 }
1058
1059 void GpuDataManagerImplPrivate::EnableWarpIfNecessary() {
1060 #if defined(OS_WIN)
1061   if (use_warp_)
1062     return;
1063   // We should only use WARP if we are unable to use the regular GPU for
1064   // compositing, and if we in Metro mode.
1065   use_warp_ = base::CommandLine::ForCurrentProcess()->HasSwitch(
1066                   switches::kViewerConnect) &&
1067               !CanUseGpuBrowserCompositor();
1068 #endif
1069 }
1070
1071 void GpuDataManagerImplPrivate::ForceWarpModeForTesting() {
1072   use_warp_ = true;
1073 }
1074
1075 std::string GpuDataManagerImplPrivate::GetDomainFromURL(
1076     const GURL& url) const {
1077   // For the moment, we just use the host, or its IP address, as the
1078   // entry in the set, rather than trying to figure out the top-level
1079   // domain. This does mean that a.foo.com and b.foo.com will be
1080   // treated independently in the blocking of a given domain, but it
1081   // would require a third-party library to reliably figure out the
1082   // top-level domain from a URL.
1083   if (!url.has_host()) {
1084     return std::string();
1085   }
1086
1087   return url.host();
1088 }
1089
1090 void GpuDataManagerImplPrivate::BlockDomainFrom3DAPIsAtTime(
1091     const GURL& url,
1092     GpuDataManagerImpl::DomainGuilt guilt,
1093     base::Time at_time) {
1094   if (!domain_blocking_enabled_)
1095     return;
1096
1097   std::string domain = GetDomainFromURL(url);
1098
1099   DomainBlockEntry& entry = blocked_domains_[domain];
1100   entry.last_guilt = guilt;
1101   timestamps_of_gpu_resets_.push_back(at_time);
1102 }
1103
1104 GpuDataManagerImpl::DomainBlockStatus
1105 GpuDataManagerImplPrivate::Are3DAPIsBlockedAtTime(
1106     const GURL& url, base::Time at_time) const {
1107   if (!domain_blocking_enabled_)
1108     return GpuDataManagerImpl::DOMAIN_BLOCK_STATUS_NOT_BLOCKED;
1109
1110   // Note: adjusting the policies in this code will almost certainly
1111   // require adjusting the associated unit tests.
1112   std::string domain = GetDomainFromURL(url);
1113
1114   DomainBlockMap::const_iterator iter = blocked_domains_.find(domain);
1115   if (iter != blocked_domains_.end()) {
1116     // Err on the side of caution, and assume that if a particular
1117     // domain shows up in the block map, it's there for a good
1118     // reason and don't let its presence there automatically expire.
1119
1120     UMA_HISTOGRAM_ENUMERATION("GPU.BlockStatusForClient3DAPIs",
1121                               BLOCK_STATUS_SPECIFIC_DOMAIN_BLOCKED,
1122                               BLOCK_STATUS_MAX);
1123
1124     return GpuDataManagerImpl::DOMAIN_BLOCK_STATUS_BLOCKED;
1125   }
1126
1127   // Look at the timestamps of the recent GPU resets to see if there are
1128   // enough within the threshold which would cause us to blacklist all
1129   // domains. This doesn't need to be overly precise -- if time goes
1130   // backward due to a system clock adjustment, that's fine.
1131   //
1132   // TODO(kbr): make this pay attention to the TDR thresholds in the
1133   // Windows registry, but make sure it continues to be testable.
1134   {
1135     std::list<base::Time>::iterator iter = timestamps_of_gpu_resets_.begin();
1136     int num_resets_within_timeframe = 0;
1137     while (iter != timestamps_of_gpu_resets_.end()) {
1138       base::Time time = *iter;
1139       base::TimeDelta delta_t = at_time - time;
1140
1141       // If this entry has "expired", just remove it.
1142       if (delta_t.InMilliseconds() > kBlockAllDomainsMs) {
1143         iter = timestamps_of_gpu_resets_.erase(iter);
1144         continue;
1145       }
1146
1147       ++num_resets_within_timeframe;
1148       ++iter;
1149     }
1150
1151     if (num_resets_within_timeframe >= kNumResetsWithinDuration) {
1152       UMA_HISTOGRAM_ENUMERATION("GPU.BlockStatusForClient3DAPIs",
1153                                 BLOCK_STATUS_ALL_DOMAINS_BLOCKED,
1154                                 BLOCK_STATUS_MAX);
1155
1156       return GpuDataManagerImpl::DOMAIN_BLOCK_STATUS_ALL_DOMAINS_BLOCKED;
1157     }
1158   }
1159
1160   UMA_HISTOGRAM_ENUMERATION("GPU.BlockStatusForClient3DAPIs",
1161                             BLOCK_STATUS_NOT_BLOCKED,
1162                             BLOCK_STATUS_MAX);
1163
1164   return GpuDataManagerImpl::DOMAIN_BLOCK_STATUS_NOT_BLOCKED;
1165 }
1166
1167 int64 GpuDataManagerImplPrivate::GetBlockAllDomainsDurationInMs() const {
1168   return kBlockAllDomainsMs;
1169 }
1170
1171 void GpuDataManagerImplPrivate::Notify3DAPIBlocked(const GURL& url,
1172                                                    int render_process_id,
1173                                                    int render_view_id,
1174                                                    ThreeDAPIType requester) {
1175   GpuDataManagerImpl::UnlockedSession session(owner_);
1176   observer_list_->Notify(FROM_HERE, &GpuDataManagerObserver::DidBlock3DAPIs,
1177                          url, render_process_id, render_view_id, requester);
1178 }
1179
1180 void GpuDataManagerImplPrivate::OnGpuProcessInitFailure() {
1181   gpu_process_accessible_ = false;
1182   gpu_info_.context_info_state = gpu::kCollectInfoFatalFailure;
1183 #if defined(OS_WIN)
1184   gpu_info_.dx_diagnostics_info_state = gpu::kCollectInfoFatalFailure;
1185 #endif
1186   complete_gpu_info_already_requested_ = true;
1187   // Some observers might be waiting.
1188   NotifyGpuInfoUpdate();
1189 }
1190
1191 }  // namespace content