cc: Hide Gpu Rasterization details in Resource Provider.

cc/resources/resource_provider.cc

Index: cc/resources/resource_provider.cc
diff --git a/cc/resources/resource_provider.cc b/cc/resources/resource_provider.cc
index 79104d7ef309afa931109763680b84d7c015c269..60f140ad6c5b7a0576f2c188c69523e187ee54f8 100644
--- a/cc/resources/resource_provider.cc
+++ b/cc/resources/resource_provider.cc
@@ -1229,6 +1229,33 @@ ResourceProvider::ScopedWriteLockSoftware::~ScopedWriteLockSoftware() {
   resource_provider_->UnlockForWrite(resource_id_);
 }
 
+ResourceProvider::ScopedGpuRaster::ScopedGpuRaster(
+    ResourceProvider* resource_provider,
+    const char* name) {
+  gl_ = resource_provider->ContextGL();
+  DCHECK(gl_);
+  gr_context_ = resource_provider->GrContext();
+  // TODO(alokp): Implement TestContextProvider::GrContext().
+  if (!gr_context_)
+    return;

[reveman, 2014/07/01 17:19:01]

looks wrong. you still want to call PushGroupMarkerEXT.

[sohanjg, 2014/07/02 07:40:37]

Done.

+
+  BeginGpuRaster(name);
+}
+
+ResourceProvider::ScopedGpuRaster::~ScopedGpuRaster() {
+  EndGpuRaster();
+}
+
+void ResourceProvider::ScopedGpuRaster::BeginGpuRaster(const char* name) {
+  gl_->PushGroupMarkerEXT(0, name);
+  gr_context_->resetContext();
+}
+
+void ResourceProvider::ScopedGpuRaster::EndGpuRaster() {
+  gr_context_->flush();

[reveman, 2014/07/01 17:19:01]

what if gr_context_ is NULL?

[sohanjg, 2014/07/02 07:40:37]

Done.

+  gl_->PopGroupMarkerEXT();
+}
+
 ResourceProvider::ResourceProvider(OutputSurface* output_surface,
                                    SharedBitmapManager* shared_bitmap_manager,
                                    int highp_threshold_min,