[WebGL-chromium]Test to validate glinfo when webglcontext fails.

content/shell/renderer/test_runner/test_runner.cc

Index: content/shell/renderer/test_runner/test_runner.cc
diff --git a/content/shell/renderer/test_runner/test_runner.cc b/content/shell/renderer/test_runner/test_runner.cc
index 3eeda2e6db4cfc9567086cfe6967df00ce69902d..869cc81368207e5c1e7623a8486ac436b8184bc0 100644
--- a/content/shell/renderer/test_runner/test_runner.cc
+++ b/content/shell/renderer/test_runner/test_runner.cc
@@ -308,6 +308,8 @@ class TestRunnerBindings : public gin::Wrappable<TestRunnerBindings> {
 
   void NotImplemented(const gin::Arguments& args);
 
+  void ForceNextWebGLContextCreationToFail();
+
   base::WeakPtr<TestRunner> runner_;
 
   DISALLOW_COPY_AND_ASSIGN(TestRunnerBindings);
@@ -544,6 +546,8 @@ gin::ObjectTemplateBuilder TestRunnerBindings::GetObjectTemplateBuilder(
                  &TestRunnerBindings::SetMockPushClientError)
       .SetMethod("setBluetoothMockDataSet",
                  &TestRunnerBindings::SetBluetoothMockDataSet)
+      .SetMethod("forceNextWebGLContextCreationToFail",
+                 &TestRunnerBindings::ForceNextWebGLContextCreationToFail)
 
       // Properties.
       .SetProperty("platformName", &TestRunnerBindings::PlatformName)
@@ -1448,6 +1452,11 @@ void TestRunnerBindings::SetInterceptPostMessage(bool value) {
     runner_->intercept_post_message_ = value;
 }
 
+void TestRunnerBindings::ForceNextWebGLContextCreationToFail() {
+  if (runner_)
+    runner_->ForceNextWebGLContextCreationToFail();
+}
+
 void TestRunnerBindings::NotImplemented(const gin::Arguments& args) {
 }
 
@@ -2845,6 +2854,11 @@ void TestRunner::CapturePixelsAsyncThen(v8::Handle<v8::Function> callback) {
                                         base::Passed(&task)));
 }
 
+void TestRunner::ForceNextWebGLContextCreationToFail() {
+  if (web_view_)
+    web_view_->forceNextWebGLContextCreationToFail();
+}
+
 void TestRunner::CopyImageAtAndCapturePixelsAsyncThen(
     int x, int y, v8::Handle<v8::Function> callback) {
   scoped_ptr<InvokeCallbackTask> task(