GpuMemoryManager should limit memory allocations based on viewport size for android.

content/common/gpu/image_transport_surface.cc

Index: content/common/gpu/image_transport_surface.cc
diff --git a/content/common/gpu/image_transport_surface.cc b/content/common/gpu/image_transport_surface.cc
index e1fadf609f1e54d800bee89b96fe1f0ebacfd490..d7640bad96b97a68b85d99c1e08db9a854020bb5 100644
--- a/content/common/gpu/image_transport_surface.cc
+++ b/content/common/gpu/image_transport_surface.cc
@@ -224,6 +224,10 @@ void ImageTransportHelper::Resize(gfx::Size size) {
 
   surface_->OnResize(size);
 
+#if defined(OS_ANDROID)
+  manager_->gpu_memory_manager()->ScheduleManage();
+#endif
+
 #if defined(OS_WIN)
   Decoder()->MakeCurrent();
   SetSwapInterval();