content/renderer/render_process_impl.cc

   1 // Copyright (c) 2012 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/renderer/render_process_impl.h"
   6
   7 #include "build/build_config.h"
   8
   9 #if defined(OS_WIN)
  10 #include <windows.h>
  11 #include <objidl.h>
  12 #include <mlang.h>
  13 #endif
  14
  15 #include "base/basictypes.h"
  16 #include "base/command_line.h"
  17 #include "base/compiler_specific.h"
  18 #include "base/sys_info.h"
  19 #include "content/child/site_isolation_policy.h"
  20 #include "content/public/common/content_switches.h"
  21 #include "content/public/renderer/content_renderer_client.h"
  22 #include "third_party/WebKit/public/web/WebFrame.h"
  23 #include "v8/include/v8.h"
  24
  25 namespace content {
  26
  27 RenderProcessImpl::RenderProcessImpl()
  28     : enabled_bindings_(0) {
  29 #if defined(OS_WIN)
  30   // HACK:  See http://b/issue?id=1024307 for rationale.
  31   if (GetModuleHandle(L"LPK.DLL") == NULL) {
  32     // Makes sure lpk.dll is loaded by gdi32 to make sure ExtTextOut() works
  33     // when buffering into a EMF buffer for printing.
  34     typedef BOOL (__stdcall *GdiInitializeLanguagePack)(int LoadedShapingDLLs);
  35     GdiInitializeLanguagePack gdi_init_lpk =
  36         reinterpret_cast<GdiInitializeLanguagePack>(GetProcAddress(
  37             GetModuleHandle(L"GDI32.DLL"),
  38             "GdiInitializeLanguagePack"));
  39     DCHECK(gdi_init_lpk);
  40     if (gdi_init_lpk) {
  41       gdi_init_lpk(0);
  42     }
  43   }
  44 #endif
  45
  46   if (base::SysInfo::IsLowEndDevice()) {
  47     std::string optimize_flag("--optimize-for-size");
  48     v8::V8::SetFlagsFromString(optimize_flag.c_str(),
  49                                static_cast<int>(optimize_flag.size()));
  50   }
  51
  52   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
  53   if (command_line.HasSwitch(switches::kJavaScriptFlags)) {
  54     std::string flags(
  55         command_line.GetSwitchValueASCII(switches::kJavaScriptFlags));
  56     v8::V8::SetFlagsFromString(flags.c_str(), static_cast<int>(flags.size()));
  57   }
  58
  59   // Turn on cross-site document blocking for renderer processes.
  60   SiteIsolationPolicy::SetPolicyEnabled(
  61       GetContentClient()->renderer()->ShouldEnableSiteIsolationPolicy());
  62 }
  63
  64 RenderProcessImpl::~RenderProcessImpl() {
  65 #ifndef NDEBUG
  66   int count = blink::WebFrame::instanceCount();
  67   if (count)
  68     DLOG(ERROR) << "WebFrame LEAKED " << count << " TIMES";
  69 #endif
  70
  71   GetShutDownEvent()->Signal();
  72 }
  73
  74 void RenderProcessImpl::AddBindings(int bindings) {
  75   enabled_bindings_ |= bindings;
  76 }
  77
  78 int RenderProcessImpl::GetEnabledBindings() const {
  79   return enabled_bindings_;
  80 }
  81
  82 }  // namespace content