Merge crbug.com/232556 to M28 branch (1500).

content/browser/gpu/gpu_data_manager_impl_private_unittest.cc

+// Copyright (c) 2013 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 "base/command_line.h"
+#include "base/message_loop.h"
+#include "base/run_loop.h"
+#include "base/time.h"
+#include "content/browser/gpu/gpu_data_manager_impl_private.h"
+#include "content/public/browser/gpu_data_manager_observer.h"
+#include "content/public/common/gpu_feature_type.h"
+#include "content/public/common/gpu_info.h"
+#include "googleurl/src/gurl.h"
+#include "gpu/command_buffer/service/gpu_switches.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+#define LONG_STRING_CONST(...) #__VA_ARGS__
+
+namespace content {
+namespace {
+
+class TestObserver : public GpuDataManagerObserver {
+ public:
+  TestObserver()
+      : gpu_info_updated_(false),
+        video_memory_usage_stats_updated_(false) {
+  }
+  virtual ~TestObserver() { }
+
+  bool gpu_info_updated() const { return gpu_info_updated_; }
+  bool video_memory_usage_stats_updated() const {
+    return video_memory_usage_stats_updated_;
+  }
+
+  virtual void OnGpuInfoUpdate() OVERRIDE {
+    gpu_info_updated_ = true;
+  }
+
+  virtual void OnVideoMemoryUsageStatsUpdate(
+      const GPUVideoMemoryUsageStats& stats) OVERRIDE {
+    video_memory_usage_stats_updated_ = true;
+  }
+
+ private:
+  bool gpu_info_updated_;
+  bool video_memory_usage_stats_updated_;
+};
+
+static base::Time GetTimeForTesting() {
+  return base::Time::FromDoubleT(1000);
+}
+
+static GURL GetDomain1ForTesting() {
+  return GURL("http://foo.com/");
+}
+
+static GURL GetDomain2ForTesting() {
+  return GURL("http://bar.com/");
+}
+
+}  // namespace anonymous
+
+class GpuDataManagerImplPrivateTest : public testing::Test {
+ public:
+  GpuDataManagerImplPrivateTest() { }
+
+  virtual ~GpuDataManagerImplPrivateTest() { }
+
+ protected:
+  // scoped_ptr doesn't work with GpuDataManagerImpl because its
+  // destructor is private. GpuDataManagerImplPrivateTest is however a friend
+  // so we can make a little helper class here.
+  class ScopedGpuDataManagerImpl {
+   public:
+    ScopedGpuDataManagerImpl() : impl_(new GpuDataManagerImpl()) {
+      EXPECT_TRUE(impl_);
+      EXPECT_TRUE(impl_->private_.get());
+    }
+    ~ScopedGpuDataManagerImpl() { delete impl_; }
+
+    GpuDataManagerImpl* get() const { return impl_; }
+
+    GpuDataManagerImpl* operator->() const { return impl_; }
+
+   private:
+    GpuDataManagerImpl* impl_;
+    DISALLOW_COPY_AND_ASSIGN(ScopedGpuDataManagerImpl);
+  };
+
+  // We want to test the code path where GpuDataManagerImplPrivate is created
+  // in the GpuDataManagerImpl constructor.
+  class ScopedGpuDataManagerImplPrivate {
+   public:
+    ScopedGpuDataManagerImplPrivate() : impl_(new GpuDataManagerImpl()) {
+      EXPECT_TRUE(impl_);
+      EXPECT_TRUE(impl_->private_.get());
+    }
+    ~ScopedGpuDataManagerImplPrivate() { delete impl_; }
+
+    GpuDataManagerImplPrivate* get() const {
+      return impl_->private_.get();
+    }
+
+    GpuDataManagerImplPrivate* operator->() const {
+      return impl_->private_.get();
+    }
+
+   private:
+    GpuDataManagerImpl* impl_;
+    DISALLOW_COPY_AND_ASSIGN(ScopedGpuDataManagerImplPrivate);
+  };
+
+  virtual void SetUp() {
+  }
+
+  virtual void TearDown() {
+  }
+
+  base::Time JustBeforeExpiration(const GpuDataManagerImplPrivate* manager);
+  base::Time JustAfterExpiration(const GpuDataManagerImplPrivate* manager);
+  void TestBlockingDomainFrom3DAPIs(
+      GpuDataManagerImpl::DomainGuilt guilt_level);
+  void TestUnblockingDomainFrom3DAPIs(
+      GpuDataManagerImpl::DomainGuilt guilt_level);
+
+  base::MessageLoop message_loop_;
+};
+
+// We use new method instead of GetInstance() method because we want
+// each test to be independent of each other.
+
+TEST_F(GpuDataManagerImplPrivateTest, GpuSideBlacklisting) {
+  // If a feature is allowed in preliminary step (browser side), but
+  // disabled when GPU process launches and collects full GPU info,
+  // it's too late to let renderer know, so we basically block all GPU
+  // access, to be on the safe side.
+  ScopedGpuDataManagerImplPrivate manager;
+  EXPECT_EQ(0u, manager->GetBlacklistedFeatureCount());
+  std::string reason;
+  EXPECT_TRUE(manager->GpuAccessAllowed(&reason));
+  EXPECT_TRUE(reason.empty());
+
+  const std::string blacklist_json = LONG_STRING_CONST(
+      {
+        "name": "gpu blacklist",
+        "version": "0.1",
+        "entries": [
+          {
+            "id": 1,
+            "features": [
+              "webgl"
+            ]
+          },
+          {
+            "id": 2,
+            "gl_renderer": {
+              "op": "contains",
+              "value": "GeForce"
+            },
+            "features": [
+              "accelerated_2d_canvas"
+            ]
+          }
+        ]
+      }
+  );
+
+  GPUInfo gpu_info;
+  gpu_info.gpu.vendor_id = 0x10de;
+  gpu_info.gpu.device_id = 0x0640;
+  manager->InitializeForTesting(blacklist_json, gpu_info);
+
+  EXPECT_TRUE(manager->GpuAccessAllowed(&reason));
+  EXPECT_TRUE(reason.empty());
+  EXPECT_EQ(1u, manager->GetBlacklistedFeatureCount());
+  EXPECT_TRUE(manager->IsFeatureBlacklisted(GPU_FEATURE_TYPE_WEBGL));
+
+  gpu_info.gl_vendor = "NVIDIA";
+  gpu_info.gl_renderer = "NVIDIA GeForce GT 120";
+  manager->UpdateGpuInfo(gpu_info);
+  EXPECT_FALSE(manager->GpuAccessAllowed(&reason));
+  EXPECT_FALSE(reason.empty());
+  EXPECT_EQ(2u, manager->GetBlacklistedFeatureCount());
+  EXPECT_TRUE(manager->IsFeatureBlacklisted(GPU_FEATURE_TYPE_WEBGL));
+  EXPECT_TRUE(manager->IsFeatureBlacklisted(
+      GPU_FEATURE_TYPE_ACCELERATED_2D_CANVAS));
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, GpuSideExceptions) {
+  ScopedGpuDataManagerImplPrivate manager;
+  EXPECT_EQ(0u, manager->GetBlacklistedFeatureCount());
+  EXPECT_TRUE(manager->GpuAccessAllowed(NULL));
+
+  const std::string blacklist_json = LONG_STRING_CONST(
+      {
+        "name": "gpu blacklist",
+        "version": "0.1",
+        "entries": [
+          {
+            "id": 1,
+            "exceptions": [
+              {
+                "gl_renderer": {
+                  "op": "contains",
+                  "value": "GeForce"
+                }
+              }
+            ],
+            "features": [
+              "webgl"
+            ]
+          }
+        ]
+      }
+  );
+  GPUInfo gpu_info;
+  gpu_info.gpu.vendor_id = 0x10de;
+  gpu_info.gpu.device_id = 0x0640;
+  manager->InitializeForTesting(blacklist_json, gpu_info);
+
+  EXPECT_TRUE(manager->GpuAccessAllowed(NULL));
+  EXPECT_EQ(0u, manager->GetBlacklistedFeatureCount());
+
+  // Now assume gpu process launches and full GPU info is collected.
+  gpu_info.gl_renderer = "NVIDIA GeForce GT 120";
+  manager->UpdateGpuInfo(gpu_info);
+  EXPECT_TRUE(manager->GpuAccessAllowed(NULL));
+  EXPECT_EQ(0u, manager->GetBlacklistedFeatureCount());
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, DisableHardwareAcceleration) {
+  ScopedGpuDataManagerImplPrivate manager;
+  EXPECT_EQ(0u, manager->GetBlacklistedFeatureCount());
+  std::string reason;
+  EXPECT_TRUE(manager->GpuAccessAllowed(&reason));
+  EXPECT_TRUE(reason.empty());
+
+  manager->DisableHardwareAcceleration();
+  EXPECT_FALSE(manager->GpuAccessAllowed(&reason));
+  EXPECT_FALSE(reason.empty());
+  EXPECT_EQ(static_cast<size_t>(NUMBER_OF_GPU_FEATURE_TYPES),
+            manager->GetBlacklistedFeatureCount());
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, SwiftShaderRendering) {
+  // Blacklist, then register SwiftShader.
+  ScopedGpuDataManagerImplPrivate manager;
+  EXPECT_EQ(0u, manager->GetBlacklistedFeatureCount());
+  EXPECT_TRUE(manager->GpuAccessAllowed(NULL));
+  EXPECT_FALSE(manager->ShouldUseSwiftShader());
+
+  manager->DisableHardwareAcceleration();
+  EXPECT_FALSE(manager->GpuAccessAllowed(NULL));
+  EXPECT_FALSE(manager->ShouldUseSwiftShader());
+
+  // If SwiftShader is enabled, even if we blacklist GPU,
+  // GPU process is still allowed.
+  const base::FilePath test_path(FILE_PATH_LITERAL("AnyPath"));
+  manager->RegisterSwiftShaderPath(test_path);
+  EXPECT_TRUE(manager->ShouldUseSwiftShader());
+  EXPECT_TRUE(manager->GpuAccessAllowed(NULL));
+  EXPECT_EQ(1u, manager->GetBlacklistedFeatureCount());
+  EXPECT_TRUE(
+      manager->IsFeatureBlacklisted(GPU_FEATURE_TYPE_ACCELERATED_2D_CANVAS));
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, SwiftShaderRendering2) {
+  // Register SwiftShader, then blacklist.
+  ScopedGpuDataManagerImplPrivate manager;
+  EXPECT_EQ(0u, manager->GetBlacklistedFeatureCount());
+  EXPECT_TRUE(manager->GpuAccessAllowed(NULL));
+  EXPECT_FALSE(manager->ShouldUseSwiftShader());
+
+  const base::FilePath test_path(FILE_PATH_LITERAL("AnyPath"));
+  manager->RegisterSwiftShaderPath(test_path);
+  EXPECT_EQ(0u, manager->GetBlacklistedFeatureCount());
+  EXPECT_TRUE(manager->GpuAccessAllowed(NULL));
+  EXPECT_FALSE(manager->ShouldUseSwiftShader());
+
+  manager->DisableHardwareAcceleration();
+  EXPECT_TRUE(manager->GpuAccessAllowed(NULL));
+  EXPECT_TRUE(manager->ShouldUseSwiftShader());
+  EXPECT_EQ(1u, manager->GetBlacklistedFeatureCount());
+  EXPECT_TRUE(
+      manager->IsFeatureBlacklisted(GPU_FEATURE_TYPE_ACCELERATED_2D_CANVAS));
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, GpuInfoUpdate) {
+  ScopedGpuDataManagerImpl manager;
+
+  TestObserver observer;
+  manager->AddObserver(&observer);
+
+  {
+    base::RunLoop run_loop;
+    run_loop.RunUntilIdle();
+  }
+  EXPECT_FALSE(observer.gpu_info_updated());
+
+  GPUInfo gpu_info;
+  manager->UpdateGpuInfo(gpu_info);
+  {
+    base::RunLoop run_loop;
+    run_loop.RunUntilIdle();
+  }
+  EXPECT_TRUE(observer.gpu_info_updated());
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, NoGpuInfoUpdateWithSwiftShader) {
+  ScopedGpuDataManagerImpl manager;
+
+  manager->DisableHardwareAcceleration();
+  const base::FilePath test_path(FILE_PATH_LITERAL("AnyPath"));
+  manager->RegisterSwiftShaderPath(test_path);
+  EXPECT_TRUE(manager->ShouldUseSwiftShader());
+  EXPECT_TRUE(manager->GpuAccessAllowed(NULL));
+
+  {
+    base::RunLoop run_loop;
+    run_loop.RunUntilIdle();
+  }
+
+  TestObserver observer;
+  manager->AddObserver(&observer);
+  {
+    base::RunLoop run_loop;
+    run_loop.RunUntilIdle();
+  }
+  EXPECT_FALSE(observer.gpu_info_updated());
+
+  GPUInfo gpu_info;
+  manager->UpdateGpuInfo(gpu_info);
+  {
+    base::RunLoop run_loop;
+    run_loop.RunUntilIdle();
+  }
+  EXPECT_FALSE(observer.gpu_info_updated());
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, GPUVideoMemoryUsageStatsUpdate) {
+  ScopedGpuDataManagerImpl manager;
+
+  TestObserver observer;
+  manager->AddObserver(&observer);
+
+  {
+    base::RunLoop run_loop;
+    run_loop.RunUntilIdle();
+  }
+  EXPECT_FALSE(observer.video_memory_usage_stats_updated());
+
+  GPUVideoMemoryUsageStats vram_stats;
+  manager->UpdateVideoMemoryUsageStats(vram_stats);
+  {
+    base::RunLoop run_loop;
+    run_loop.RunUntilIdle();
+  }
+  EXPECT_TRUE(observer.video_memory_usage_stats_updated());
+}
+
+base::Time GpuDataManagerImplPrivateTest::JustBeforeExpiration(
+    const GpuDataManagerImplPrivate* manager) {
+  return GetTimeForTesting() + base::TimeDelta::FromMilliseconds(
+      manager->GetBlockAllDomainsDurationInMs()) -
+      base::TimeDelta::FromMilliseconds(3);
+}
+
+base::Time GpuDataManagerImplPrivateTest::JustAfterExpiration(
+    const GpuDataManagerImplPrivate* manager) {
+  return GetTimeForTesting() + base::TimeDelta::FromMilliseconds(
+      manager->GetBlockAllDomainsDurationInMs()) +
+      base::TimeDelta::FromMilliseconds(3);
+}
+
+void GpuDataManagerImplPrivateTest::TestBlockingDomainFrom3DAPIs(
+    GpuDataManagerImpl::DomainGuilt guilt_level) {
+  ScopedGpuDataManagerImplPrivate manager;
+
+  manager->BlockDomainFrom3DAPIsAtTime(GetDomain1ForTesting(),
+                                      guilt_level,
+                                      GetTimeForTesting());
+
+  // This domain should be blocked no matter what.
+  EXPECT_EQ(GpuDataManagerImpl::DOMAIN_BLOCK_STATUS_BLOCKED,
+            manager->Are3DAPIsBlockedAtTime(GetDomain1ForTesting(),
+                                           GetTimeForTesting()));
+  EXPECT_EQ(GpuDataManagerImpl::DOMAIN_BLOCK_STATUS_BLOCKED,
+            manager->Are3DAPIsBlockedAtTime(
+                GetDomain1ForTesting(), JustBeforeExpiration(manager.get())));
+  EXPECT_EQ(GpuDataManagerImpl::DOMAIN_BLOCK_STATUS_BLOCKED,
+            manager->Are3DAPIsBlockedAtTime(
+                GetDomain1ForTesting(), JustAfterExpiration(manager.get())));
+}
+
+void GpuDataManagerImplPrivateTest::TestUnblockingDomainFrom3DAPIs(
+    GpuDataManagerImpl::DomainGuilt guilt_level) {
+  ScopedGpuDataManagerImplPrivate manager;
+
+  manager->BlockDomainFrom3DAPIsAtTime(GetDomain1ForTesting(),
+                                       guilt_level,
+                                       GetTimeForTesting());
+
+  // Unblocking the domain should work.
+  manager->UnblockDomainFrom3DAPIs(GetDomain1ForTesting());
+  EXPECT_EQ(GpuDataManagerImpl::DOMAIN_BLOCK_STATUS_NOT_BLOCKED,
+            manager->Are3DAPIsBlockedAtTime(GetDomain1ForTesting(),
+                                            GetTimeForTesting()));
+  EXPECT_EQ(GpuDataManagerImpl::DOMAIN_BLOCK_STATUS_NOT_BLOCKED,
+            manager->Are3DAPIsBlockedAtTime(
+                GetDomain1ForTesting(), JustBeforeExpiration(manager.get())));
+  EXPECT_EQ(GpuDataManagerImpl::DOMAIN_BLOCK_STATUS_NOT_BLOCKED,
+            manager->Are3DAPIsBlockedAtTime(
+                GetDomain1ForTesting(), JustAfterExpiration(manager.get())));
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, BlockGuiltyDomainFrom3DAPIs) {
+  TestBlockingDomainFrom3DAPIs(GpuDataManagerImpl::DOMAIN_GUILT_KNOWN);
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, BlockDomainOfUnknownGuiltFrom3DAPIs) {
+  TestBlockingDomainFrom3DAPIs(GpuDataManagerImpl::DOMAIN_GUILT_UNKNOWN);
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, BlockAllDomainsFrom3DAPIs) {
+  ScopedGpuDataManagerImplPrivate manager;
+
+  manager->BlockDomainFrom3DAPIsAtTime(GetDomain1ForTesting(),
+                                       GpuDataManagerImpl::DOMAIN_GUILT_UNKNOWN,
+                                       GetTimeForTesting());
+
+  // Blocking of other domains should expire.
+  EXPECT_EQ(GpuDataManagerImpl::DOMAIN_BLOCK_STATUS_ALL_DOMAINS_BLOCKED,
+            manager->Are3DAPIsBlockedAtTime(
+                GetDomain2ForTesting(), JustBeforeExpiration(manager.get())));
+  EXPECT_EQ(GpuDataManagerImpl::DOMAIN_BLOCK_STATUS_NOT_BLOCKED,
+            manager->Are3DAPIsBlockedAtTime(
+                GetDomain2ForTesting(), JustAfterExpiration(manager.get())));
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, UnblockGuiltyDomainFrom3DAPIs) {
+  TestUnblockingDomainFrom3DAPIs(GpuDataManagerImpl::DOMAIN_GUILT_KNOWN);
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, UnblockDomainOfUnknownGuiltFrom3DAPIs) {
+  TestUnblockingDomainFrom3DAPIs(GpuDataManagerImpl::DOMAIN_GUILT_UNKNOWN);
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, UnblockOtherDomainFrom3DAPIs) {
+  ScopedGpuDataManagerImplPrivate manager;
+
+  manager->BlockDomainFrom3DAPIsAtTime(GetDomain1ForTesting(),
+                                       GpuDataManagerImpl::DOMAIN_GUILT_UNKNOWN,
+                                       GetTimeForTesting());
+
+  manager->UnblockDomainFrom3DAPIs(GetDomain2ForTesting());
+
+  EXPECT_EQ(GpuDataManagerImpl::DOMAIN_BLOCK_STATUS_NOT_BLOCKED,
+            manager->Are3DAPIsBlockedAtTime(
+                GetDomain2ForTesting(), JustBeforeExpiration(manager.get())));
+
+  // The original domain should still be blocked.
+  EXPECT_EQ(GpuDataManagerImpl::DOMAIN_BLOCK_STATUS_BLOCKED,
+            manager->Are3DAPIsBlockedAtTime(
+                GetDomain1ForTesting(), JustBeforeExpiration(manager.get())));
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, UnblockThisDomainFrom3DAPIs) {
+  ScopedGpuDataManagerImplPrivate manager;
+
+  manager->BlockDomainFrom3DAPIsAtTime(GetDomain1ForTesting(),
+                                       GpuDataManagerImpl::DOMAIN_GUILT_UNKNOWN,
+                                       GetTimeForTesting());
+
+  manager->UnblockDomainFrom3DAPIs(GetDomain1ForTesting());
+
+  // This behavior is debatable. Perhaps the GPU reset caused by
+  // domain 1 should still cause other domains to be blocked.
+  EXPECT_EQ(GpuDataManagerImpl::DOMAIN_BLOCK_STATUS_NOT_BLOCKED,
+            manager->Are3DAPIsBlockedAtTime(
+                GetDomain2ForTesting(), JustBeforeExpiration(manager.get())));
+}
+
+#if defined(OS_LINUX)
+TEST_F(GpuDataManagerImplPrivateTest, SetGLStrings) {
+  const char* kGLVendorMesa = "Tungsten Graphics, Inc";
+  const char* kGLRendererMesa = "Mesa DRI Intel(R) G41";
+  const char* kGLVersionMesa801 = "2.1 Mesa 8.0.1-DEVEL";
+
+  ScopedGpuDataManagerImplPrivate manager;
+  EXPECT_EQ(0u, manager->GetBlacklistedFeatureCount());
+  EXPECT_TRUE(manager->GpuAccessAllowed(NULL));
+
+  const std::string blacklist_json = LONG_STRING_CONST(
+      {
+        "name": "gpu blacklist",
+        "version": "0.1",
+        "entries": [
+          {
+            "id": 1,
+            "vendor_id": "0x8086",
+            "exceptions": [
+              {
+                "device_id": ["0x0042"],
+                "driver_version": {
+                  "op": ">=",
+                  "number": "8.0.2"
+                }
+              }
+            ],
+            "features": [
+              "webgl"
+            ]
+          }
+        ]
+      }
+  );
+  GPUInfo gpu_info;
+  gpu_info.gpu.vendor_id = 0x8086;
+  gpu_info.gpu.device_id = 0x0042;
+  manager->InitializeForTesting(blacklist_json, gpu_info);
+
+  // Not enough GPUInfo.
+  EXPECT_TRUE(manager->GpuAccessAllowed(NULL));
+  EXPECT_EQ(0u, manager->GetBlacklistedFeatureCount());
+
+  // Now assume browser gets GL strings from local state.
+  // The entry applies, blacklist more features than from the preliminary step.
+  // However, GPU process is not blocked because this is all browser side and
+  // happens before renderer launching.
+  manager->SetGLStrings(kGLVendorMesa, kGLRendererMesa, kGLVersionMesa801);
+  EXPECT_TRUE(manager->GpuAccessAllowed(NULL));
+  EXPECT_EQ(1u, manager->GetBlacklistedFeatureCount());
+  EXPECT_TRUE(manager->IsFeatureBlacklisted(GPU_FEATURE_TYPE_WEBGL));
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, SetGLStringsNoEffects) {
+  const char* kGLVendorMesa = "Tungsten Graphics, Inc";
+  const char* kGLRendererMesa = "Mesa DRI Intel(R) G41";
+  const char* kGLVersionMesa801 = "2.1 Mesa 8.0.1-DEVEL";
+  const char* kGLVersionMesa802 = "2.1 Mesa 8.0.2-DEVEL";
+
+  ScopedGpuDataManagerImplPrivate manager;
+  EXPECT_EQ(0u, manager->GetBlacklistedFeatureCount());
+  EXPECT_TRUE(manager->GpuAccessAllowed(NULL));
+
+  const std::string blacklist_json = LONG_STRING_CONST(
+      {
+        "name": "gpu blacklist",
+        "version": "0.1",
+        "entries": [
+          {
+            "id": 1,
+            "vendor_id": "0x8086",
+            "exceptions": [
+              {
+                "device_id": ["0x0042"],
+                "driver_version": {
+                  "op": ">=",
+                  "number": "8.0.2"
+                }
+              }
+            ],
+            "features": [
+              "webgl"
+            ]
+          }
+        ]
+      }
+  );
+  GPUInfo gpu_info;
+  gpu_info.gpu.vendor_id = 0x8086;
+  gpu_info.gpu.device_id = 0x0042;
+  gpu_info.gl_vendor = kGLVendorMesa;
+  gpu_info.gl_renderer = kGLRendererMesa;
+  gpu_info.gl_version = kGLVersionMesa801;
+  gpu_info.driver_vendor = "Mesa";
+  gpu_info.driver_version = "8.0.1";
+  manager->InitializeForTesting(blacklist_json, gpu_info);
+
+  // Full GPUInfo, the entry applies.
+  EXPECT_TRUE(manager->GpuAccessAllowed(NULL));
+  EXPECT_EQ(1u, manager->GetBlacklistedFeatureCount());
+  EXPECT_TRUE(manager->IsFeatureBlacklisted(GPU_FEATURE_TYPE_WEBGL));
+
+  // Now assume browser gets GL strings from local state.
+  // SetGLStrings() has no effects because GPUInfo already got these strings.
+  // (Otherwise the entry should not apply.)
+  manager->SetGLStrings(kGLVendorMesa, kGLRendererMesa, kGLVersionMesa802);
+  EXPECT_TRUE(manager->GpuAccessAllowed(NULL));
+  EXPECT_EQ(1u, manager->GetBlacklistedFeatureCount());
+  EXPECT_TRUE(manager->IsFeatureBlacklisted(GPU_FEATURE_TYPE_WEBGL));
+}
+#endif  // OS_LINUX
+
+TEST_F(GpuDataManagerImplPrivateTest, GpuDriverBugListSingle) {
+  ScopedGpuDataManagerImplPrivate manager;
+  manager->gpu_driver_bugs_.insert(5);
+
+  CommandLine command_line(0, NULL);
+  manager->AppendGpuCommandLine(&command_line);
+
+  EXPECT_TRUE(command_line.HasSwitch(switches::kGpuDriverBugWorkarounds));
+  std::string args = command_line.GetSwitchValueASCII(
+      switches::kGpuDriverBugWorkarounds);
+  EXPECT_STREQ("5", args.c_str());
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, GpuDriverBugListMultiple) {
+  ScopedGpuDataManagerImplPrivate manager;
+  manager->gpu_driver_bugs_.insert(5);
+  manager->gpu_driver_bugs_.insert(7);
+
+  CommandLine command_line(0, NULL);
+  manager->AppendGpuCommandLine(&command_line);
+
+  EXPECT_TRUE(command_line.HasSwitch(switches::kGpuDriverBugWorkarounds));
+  std::string args = command_line.GetSwitchValueASCII(
+      switches::kGpuDriverBugWorkarounds);
+  EXPECT_STREQ("5,7", args.c_str());
+}
+
+TEST_F(GpuDataManagerImplPrivateTest, BlacklistAllFeatures) {
+  ScopedGpuDataManagerImplPrivate manager;
+  EXPECT_EQ(0u, manager->GetBlacklistedFeatureCount());
+  std::string reason;
+  EXPECT_TRUE(manager->GpuAccessAllowed(&reason));
+  EXPECT_TRUE(reason.empty());
+
+  const std::string blacklist_json = LONG_STRING_CONST(
+      {
+        "name": "gpu blacklist",
+        "version": "0.1",
+        "entries": [
+          {
+            "id": 1,
+            "features": [
+              "all"
+            ]
+          }
+        ]
+      }
+  );
+
+  GPUInfo gpu_info;
+  gpu_info.gpu.vendor_id = 0x10de;
+  gpu_info.gpu.device_id = 0x0640;
+  manager->InitializeForTesting(blacklist_json, gpu_info);
+
+  EXPECT_EQ(static_cast<size_t>(NUMBER_OF_GPU_FEATURE_TYPES),
+            manager->GetBlacklistedFeatureCount());
+  // TODO(zmo): remove the Linux specific behavior once we fix
+  // crbug.com/238466.
+#if defined(OS_LINUX)
+  EXPECT_TRUE(manager->GpuAccessAllowed(&reason));
+  EXPECT_TRUE(reason.empty());
+#else
+  EXPECT_FALSE(manager->GpuAccessAllowed(&reason));
+  EXPECT_FALSE(reason.empty());
+#endif
+}
+
+}  // namespace content