color: Set GpuMemoryBuffer color spaces for Canvas

third_party/WebKit/public/platform/Platform.h

Index: third_party/WebKit/public/platform/Platform.h
diff --git a/third_party/WebKit/public/platform/Platform.h b/third_party/WebKit/public/platform/Platform.h
index 02de04399c779229a46a7fe78043321640bc2d2d..6b78cdb9e8d958e2985b42cc2dc152d4dbfd12ad 100644
--- a/third_party/WebKit/public/platform/Platform.h
+++ b/third_party/WebKit/public/platform/Platform.h
@@ -58,6 +58,10 @@
 
 class GrContext;
 
+namespace gpu {
+class GpuMemoryBufferManager;
+}
+
 namespace v8 {
 class Context;
 template<class T> class Local;
@@ -444,6 +448,8 @@ public:
     // the context cannot be created or initialized.
     virtual WebGraphicsContext3DProvider* createSharedOffscreenGraphicsContext3DProvider() { return nullptr; }
 
+    virtual gpu::GpuMemoryBufferManager* getGpuMemoryBufferManager() { return nullptr; }
+
     virtual std::unique_ptr<cc::SharedBitmap> allocateSharedBitmap(const WebSize& size) { return nullptr; }
 
     virtual bool isThreadedCompositingEnabled() { return false; }