content/renderer/pepper/pepper_plugin_instance_metrics.cc

   1 // Copyright 2015 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/pepper/pepper_plugin_instance_metrics.h"
   6
   7 #include "base/metrics/histogram.h"
   8 #include "base/metrics/sparse_histogram.h"
   9 #include "ppapi/shared_impl/ppapi_preferences.h"
  10
  11 #if defined(OS_WIN)
  12 #include "base/win/windows_version.h"
  13 #endif
  14
  15 #define UMA_HISTOGRAM_ASPECT_RATIO(name, width, height) \
  16   UMA_HISTOGRAM_SPARSE_SLOWLY(                          \
  17       name, (height) ? ((width)*100) / (height) : kInfiniteRatio);
  18
  19 namespace content {
  20
  21 namespace {
  22
  23 // Histogram tracking prevalence of tiny Flash instances. Units in pixels.
  24 enum PluginFlashTinyContentSize {
  25   TINY_CONTENT_SIZE_1_1 = 0,
  26   TINY_CONTENT_SIZE_5_5 = 1,
  27   TINY_CONTENT_SIZE_10_10 = 2,
  28   TINY_CONTENT_SIZE_LARGE = 3,
  29   TINY_CONTENT_SIZE_NUM_ITEMS
  30 };
  31
  32 const int kInfiniteRatio = 99999;
  33
  34 const char kFlashClickSizeAspectRatioHistogram[] =
  35     "Plugin.Flash.ClickSize.AspectRatio";
  36 const char kFlashClickSizeHeightHistogram[] = "Plugin.Flash.ClickSize.Height";
  37 const char kFlashClickSizeWidthHistogram[] = "Plugin.Flash.ClickSize.Width";
  38 const char kFlashTinyContentSizeHistogram[] = "Plugin.Flash.TinyContentSize";
  39
  40 }  // namespace
  41
  42 void RecordFlashSizeMetric(int width, int height) {
  43   PluginFlashTinyContentSize size = TINY_CONTENT_SIZE_LARGE;
  44
  45   if (width <= 1 && height <= 1)
  46     size = TINY_CONTENT_SIZE_1_1;
  47   else if (width <= 5 && height <= 5)
  48     size = TINY_CONTENT_SIZE_5_5;
  49   else if (width <= 10 && height <= 10)
  50     size = TINY_CONTENT_SIZE_10_10;
  51
  52   UMA_HISTOGRAM_ENUMERATION(kFlashTinyContentSizeHistogram, size,
  53                             TINY_CONTENT_SIZE_NUM_ITEMS);
  54 }
  55
  56 void RecordFlashClickSizeMetric(int width, int height) {
  57   base::HistogramBase* width_histogram = base::LinearHistogram::FactoryGet(
  58       kFlashClickSizeWidthHistogram,
  59       0,    // minimum width
  60       500,  // maximum width
  61       100,  // number of buckets.
  62       base::HistogramBase::kUmaTargetedHistogramFlag);
  63   width_histogram->Add(width);
  64
  65   base::HistogramBase* height_histogram = base::LinearHistogram::FactoryGet(
  66       kFlashClickSizeHeightHistogram,
  67       0,    // minimum height
  68       400,  // maximum height
  69       100,  // number of buckets.
  70       base::HistogramBase::kUmaTargetedHistogramFlag);
  71   height_histogram->Add(height);
  72
  73   UMA_HISTOGRAM_ASPECT_RATIO(kFlashClickSizeAspectRatioHistogram, width,
  74                              height);
  75 }
  76
  77 void SetGPUHistogram(const ppapi::Preferences& prefs,
  78                      const std::vector<std::string>& arg_names,
  79                      const std::vector<std::string>& arg_values) {
  80 // Calculate a histogram to let us determine how likely people are to try to
  81 // run Stage3D content on machines that have it blacklisted.
  82 #if defined(OS_WIN)
  83   bool needs_gpu = false;
  84   bool is_xp = base::win::GetVersion() <= base::win::VERSION_XP;
  85
  86   for (size_t i = 0; i < arg_names.size(); i++) {
  87     if (arg_names[i] == "wmode") {
  88       // In theory content other than Flash could have a "wmode" argument,
  89       // but that's pretty unlikely.
  90       if (arg_values[i] == "direct" || arg_values[i] == "gpu")
  91         needs_gpu = true;
  92       break;
  93     }
  94   }
  95   // 0 : No 3D content and GPU is blacklisted
  96   // 1 : No 3D content and GPU is not blacklisted
  97   // 2 : 3D content but GPU is blacklisted
  98   // 3 : 3D content and GPU is not blacklisted
  99   // 4 : No 3D content and GPU is blacklisted on XP
 100   // 5 : No 3D content and GPU is not blacklisted on XP
 101   // 6 : 3D content but GPU is blacklisted on XP
 102   // 7 : 3D content and GPU is not blacklisted on XP
 103   UMA_HISTOGRAM_ENUMERATION(
 104       "Flash.UsesGPU", is_xp * 4 + needs_gpu * 2 + prefs.is_webgl_supported, 8);
 105 #endif
 106 }
 107
 108 }  // namespace content