Move GPU device/driver info related code from content to gpu.

content/browser/gpu/gpu_util.cc

Index: content/browser/gpu/gpu_util.cc
===================================================================
--- content/browser/gpu/gpu_util.cc	(revision 201645)
+++ content/browser/gpu/gpu_util.cc	(working copy)
@@ -1,191 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "content/browser/gpu/gpu_util.h"
-
-#include <vector>
-
-#include "base/command_line.h"
-#include "base/metrics/histogram.h"
-#include "base/string_util.h"
-#include "base/sys_info.h"
-#include "base/version.h"
-#include "content/browser/gpu/gpu_blacklist.h"
-#include "content/public/common/content_switches.h"
-#include "content/public/common/gpu_feature_type.h"
-#include "ui/gl/gl_switches.h"
-
-namespace content {
-namespace {
-
-enum GpuFeatureStatus {
-    kGpuFeatureEnabled = 0,
-    kGpuFeatureBlacklisted = 1,
-    kGpuFeatureDisabled = 2,  // disabled by user but not blacklisted
-    kGpuFeatureNumStatus
-};
-
-#if defined(OS_WIN)
-
-enum WinSubVersion {
-  kWinOthers = 0,
-  kWinXP,
-  kWinVista,
-  kWin7,
-  kNumWinSubVersions
-};
-
-int GetGpuBlacklistHistogramValueWin(GpuFeatureStatus status) {
-  static WinSubVersion sub_version = kNumWinSubVersions;
-  if (sub_version == kNumWinSubVersions) {
-    sub_version = kWinOthers;
-    std::string version_str = base::SysInfo::OperatingSystemVersion();
-    size_t pos = version_str.find_first_not_of("0123456789.");
-    if (pos != std::string::npos)
-      version_str = version_str.substr(0, pos);
-    Version os_version(version_str);
-    if (os_version.IsValid() && os_version.components().size() >= 2) {
-      const std::vector<uint16>& version_numbers = os_version.components();
-      if (version_numbers[0] == 5)
-        sub_version = kWinXP;
-      else if (version_numbers[0] == 6 && version_numbers[1] == 0)
-        sub_version = kWinVista;
-      else if (version_numbers[0] == 6 && version_numbers[1] == 1)
-        sub_version = kWin7;
-    }
-  }
-  int entry_index = static_cast<int>(sub_version) * kGpuFeatureNumStatus;
-  switch (status) {
-    case kGpuFeatureEnabled:
-      break;
-    case kGpuFeatureBlacklisted:
-      entry_index++;
-      break;
-    case kGpuFeatureDisabled:
-      entry_index += 2;
-      break;
-  }
-  return entry_index;
-}
-#endif  // OS_WIN
-
-}  // namespace anonymous
-
-GpuSwitchingOption StringToGpuSwitchingOption(
-    const std::string& switching_string) {
-  if (switching_string == switches::kGpuSwitchingOptionNameAutomatic)
-    return GPU_SWITCHING_OPTION_AUTOMATIC;
-  if (switching_string == switches::kGpuSwitchingOptionNameForceIntegrated)
-    return GPU_SWITCHING_OPTION_FORCE_INTEGRATED;
-  if (switching_string == switches::kGpuSwitchingOptionNameForceDiscrete)
-    return GPU_SWITCHING_OPTION_FORCE_DISCRETE;
-  return GPU_SWITCHING_OPTION_UNKNOWN;
-}
-
-std::string GpuSwitchingOptionToString(GpuSwitchingOption option) {
-  switch (option) {
-    case GPU_SWITCHING_OPTION_AUTOMATIC:
-      return switches::kGpuSwitchingOptionNameAutomatic;
-    case GPU_SWITCHING_OPTION_FORCE_INTEGRATED:
-      return switches::kGpuSwitchingOptionNameForceIntegrated;
-    case GPU_SWITCHING_OPTION_FORCE_DISCRETE:
-      return switches::kGpuSwitchingOptionNameForceDiscrete;
-    default:
-      return "unknown";
-  }
-}
-
-void UpdateStats(const GpuBlacklist* blacklist,
-                 const std::set<int>& blacklisted_features) {
-  uint32 max_entry_id = blacklist->max_entry_id();
-  if (max_entry_id == 0) {
-    // GPU Blacklist was not loaded.  No need to go further.
-    return;
-  }
-
-  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
-  bool disabled = false;
-  if (blacklisted_features.size() == 0) {
-    UMA_HISTOGRAM_ENUMERATION("GPU.BlacklistTestResultsPerEntry",
-        0, max_entry_id + 1);
-  } else {
-    std::vector<uint32> flag_entries;
-    blacklist->GetDecisionEntries(&flag_entries, disabled);
-    DCHECK_GT(flag_entries.size(), 0u);
-    for (size_t i = 0; i < flag_entries.size(); ++i) {
-      UMA_HISTOGRAM_ENUMERATION("GPU.BlacklistTestResultsPerEntry",
-          flag_entries[i], max_entry_id + 1);
-    }
-  }
-
-  // This counts how many users are affected by a disabled entry - this allows
-  // us to understand the impact of an entry before enable it.
-  std::vector<uint32> flag_disabled_entries;
-  disabled = true;
-  blacklist->GetDecisionEntries(&flag_disabled_entries, disabled);
-  for (size_t i = 0; i < flag_disabled_entries.size(); ++i) {
-    UMA_HISTOGRAM_ENUMERATION("GPU.BlacklistTestResultsPerDisabledEntry",
-        flag_disabled_entries[i], max_entry_id + 1);
-  }
-
-  const GpuFeatureType kGpuFeatures[] = {
-      GPU_FEATURE_TYPE_ACCELERATED_2D_CANVAS,
-      GPU_FEATURE_TYPE_ACCELERATED_COMPOSITING,
-      GPU_FEATURE_TYPE_WEBGL
-  };
-  const std::string kGpuBlacklistFeatureHistogramNames[] = {
-      "GPU.BlacklistFeatureTestResults.Accelerated2dCanvas",
-      "GPU.BlacklistFeatureTestResults.AcceleratedCompositing",
-      "GPU.BlacklistFeatureTestResults.Webgl"
-  };
-  const bool kGpuFeatureUserFlags[] = {
-      command_line.HasSwitch(switches::kDisableAccelerated2dCanvas),
-      command_line.HasSwitch(switches::kDisableAcceleratedCompositing),
-#if defined(OS_ANDROID)
-      !command_line.HasSwitch(switches::kEnableExperimentalWebGL)
-#else
-      command_line.HasSwitch(switches::kDisableExperimentalWebGL)
-#endif
-  };
-#if defined(OS_WIN)
-  const std::string kGpuBlacklistFeatureHistogramNamesWin[] = {
-      "GPU.BlacklistFeatureTestResultsWindows.Accelerated2dCanvas",
-      "GPU.BlacklistFeatureTestResultsWindows.AcceleratedCompositing",
-      "GPU.BlacklistFeatureTestResultsWindows.Webgl"
-  };
-#endif
-  const size_t kNumFeatures =
-      sizeof(kGpuFeatures) / sizeof(GpuFeatureType);
-  for (size_t i = 0; i < kNumFeatures; ++i) {
-    // We can't use UMA_HISTOGRAM_ENUMERATION here because the same name is
-    // expected if the macro is used within a loop.
-    GpuFeatureStatus value = kGpuFeatureEnabled;
-    if (blacklisted_features.count(kGpuFeatures[i]))
-      value = kGpuFeatureBlacklisted;
-    else if (kGpuFeatureUserFlags[i])
-      value = kGpuFeatureDisabled;
-    base::HistogramBase* histogram_pointer = base::LinearHistogram::FactoryGet(
-        kGpuBlacklistFeatureHistogramNames[i],
-        1, kGpuFeatureNumStatus, kGpuFeatureNumStatus + 1,
-        base::HistogramBase::kUmaTargetedHistogramFlag);
-    histogram_pointer->Add(value);
-#if defined(OS_WIN)
-    histogram_pointer = base::LinearHistogram::FactoryGet(
-        kGpuBlacklistFeatureHistogramNamesWin[i],
-        1, kNumWinSubVersions * kGpuFeatureNumStatus,
-        kNumWinSubVersions * kGpuFeatureNumStatus + 1,
-        base::HistogramBase::kUmaTargetedHistogramFlag);
-    histogram_pointer->Add(GetGpuBlacklistHistogramValueWin(value));
-#endif
-  }
-}
-
-void MergeFeatureSets(std::set<int>* dst, const std::set<int>& src) {
-  DCHECK(dst);
-  if (src.empty())
-    return;
-  dst->insert(src.begin(), src.end());
-}
-
-}  // namespace content