Remove PPB_ImageData_API::GetPlatformCanvas()

ppapi/proxy/ppb_image_data_proxy.cc

Index: ppapi/proxy/ppb_image_data_proxy.cc
diff --git a/ppapi/proxy/ppb_image_data_proxy.cc b/ppapi/proxy/ppb_image_data_proxy.cc
index 6c04fc420d6dec145c64672632eef89172aa4040..c04f2aa7c1c66b9d35d0807a1f4b0c85ccfb62ec 100644
--- a/ppapi/proxy/ppb_image_data_proxy.cc
+++ b/ppapi/proxy/ppb_image_data_proxy.cc
@@ -404,10 +404,6 @@ void PlatformImageData::Unmap() {
   // We need to add a method to TransportDIB to release the handles.
 }
 
-SkCanvas* PlatformImageData::GetPlatformCanvas() {
-  return mapped_canvas_.get();
-}
-
 SkCanvas* PlatformImageData::GetCanvas() {
   return mapped_canvas_.get();
 }
@@ -443,10 +439,6 @@ void SimpleImageData::Unmap() {
     shm_.Unmap();
 }
 
-SkCanvas* SimpleImageData::GetPlatformCanvas() {
-  return NULL;  // No canvas available.
-}
-
 SkCanvas* SimpleImageData::GetCanvas() {
   return NULL;  // No canvas available.
 }