2 files changed, 101 insertions, 0 deletions
diff --git a/chrome/browser/gpu/gl_string_manager.cc b/chrome/browser/gpu/gl_string_manager.cc
new file mode 100644
index 0000000..7cc8bc6
--- /dev/null
+++ b/chrome/browser/gpu/gl_string_manager.cc
@@ -0,0 +1,65 @@
+// 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 "chrome/browser/gpu/gl_string_manager.h"
+
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/common/pref_names.h"
+#include "content/public/browser/gpu_data_manager.h"
+
+GLStringManager::GLStringManager() {
+}
+
+GLStringManager::~GLStringManager() {
+}
+
+void GLStringManager::Initialize() {
+  // On MacOSX or Windows, preliminary GPUInfo is enough.
+#if defined(OS_LINUX)
+  // We never remove this observer from GpuDataManager.
+  content::GpuDataManager::GetInstance()->AddObserver(this);
+
+  PrefService* local_state = g_browser_process->local_state();
+  if (!local_state)
+    return;
+
+  local_state->RegisterStringPref(prefs::kGLVendorString, gl_vendor_);
+  local_state->RegisterStringPref(prefs::kGLRendererString, gl_renderer_);
+  local_state->RegisterStringPref(prefs::kGLVersionString, gl_version_);
+
+  gl_vendor_ = local_state->GetString(prefs::kGLVendorString);
+  gl_renderer_ = local_state->GetString(prefs::kGLRendererString);
+  gl_version_ = local_state->GetString(prefs::kGLVersionString);
+
+  if (!gl_vendor_.empty() || !gl_renderer_.empty() || !gl_version_.empty()) {
+    content::GpuDataManager::GetInstance()->SetGLStrings(
+        gl_vendor_, gl_renderer_, gl_version_);
+  }
+#endif
+}
+
+void GLStringManager::OnGpuInfoUpdate() {
+  std::string gl_vendor, gl_renderer, gl_version;
+  content::GpuDataManager::GetInstance()->GetGLStrings(
+      &gl_vendor, &gl_renderer, &gl_version);
+
+  PrefService* local_state = g_browser_process->local_state();
+  if (!local_state)
+    return;
+
+  if (!gl_vendor.empty() && gl_vendor != gl_vendor_) {
+    gl_vendor_ = gl_vendor;
+    local_state->SetString(prefs::kGLVendorString, gl_vendor_);
+  }
+  if (!gl_renderer.empty() && gl_renderer != gl_renderer_) {
+    gl_renderer_ = gl_renderer;
+    local_state->SetString(prefs::kGLRendererString, gl_renderer_);
+  }
+  if (!gl_version.empty() && gl_version != gl_version_) {
+    gl_version_ = gl_version;
+    local_state->SetString(prefs::kGLVersionString, gl_version_);
+  }
+}
+
diff --git a/chrome/browser/gpu/gl_string_manager.h b/chrome/browser/gpu/gl_string_manager.h
new file mode 100644
index 0000000..bf3b499
--- /dev/null
+++ b/chrome/browser/gpu/gl_string_manager.h
@@ -0,0 +1,36 @@
+// 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.
+
+#ifndef CHROME_BROWSER_GPU_GL_STRING_MANAGER_H_
+#define CHROME_BROWSER_GPU_GL_STRING_MANAGER_H_
+
+#include <string>
+
+#include "base/compiler_specific.h"
+#include "content/public/browser/gpu_data_manager_observer.h"
+
+class GLStringManager : public content::GpuDataManagerObserver {
+ public:
+  GLStringManager();
+  virtual ~GLStringManager();
+
+  // Get cached GL strings in local state and send them to GpuDataManager.
+  void Initialize();
+
+  // content::GpuDataManagerObserver
+  virtual void OnGpuInfoUpdate() OVERRIDE;
+  virtual void OnVideoMemoryUsageStatsUpdate(
+      const content::GPUVideoMemoryUsageStats& video_memory_usage_stats)
+          OVERRIDE {}
+
+ private:
+  std::string gl_vendor_;
+  std::string gl_renderer_;
+  std::string gl_version_;
+
+  DISALLOW_COPY_AND_ASSIGN(GLStringManager);
+};
+
+#endif  // CHROME_BROWSER_GPU_GL_STRING_MANAGER_H_
+