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

content/common/gpu/gpu_memory_manager_unittest.cc

Index: content/common/gpu/gpu_memory_manager_unittest.cc
diff --git a/content/common/gpu/gpu_memory_manager_unittest.cc b/content/common/gpu/gpu_memory_manager_unittest.cc
index 3e562031a2776821942c69b98c6b8d6c272769c4..cc527801314926b19fb7fc0628ff70a3c6991377 100644
--- a/content/common/gpu/gpu_memory_manager_unittest.cc
+++ b/content/common/gpu/gpu_memory_manager_unittest.cc
@@ -33,6 +33,9 @@ class FakeCommandBufferStub : public GpuCommandBufferStubBase {
     return surface_state_;
   }
 
+  virtual gfx::Size GetSurfaceSize() const {
+    return gfx::Size();
+  }
   virtual bool IsInSameContextShareGroup(
       const GpuCommandBufferStubBase& stub) const {
     return false;
@@ -64,6 +67,9 @@ class FakeCommandBufferStubWithoutSurface : public GpuCommandBufferStubBase {
     return *surface_state_;
   }
 
+  virtual gfx::Size GetSurfaceSize() const {
+    return gfx::Size();
+  }
   virtual bool IsInSameContextShareGroup(
       const GpuCommandBufferStubBase& stub) const {
     return std::find(share_group_.begin(),