Add multi-planar functions to GpuMemoryBuffer

content/browser/compositor/buffer_queue_unittest.cc

Index: content/browser/compositor/buffer_queue_unittest.cc
diff --git a/content/browser/compositor/buffer_queue_unittest.cc b/content/browser/compositor/buffer_queue_unittest.cc
index 019474ff625dd2f27758fcd6476333a7e4614fa6..48d60c059d767a962bcc6bb22c75e0a37b2f1236 100644
--- a/content/browser/compositor/buffer_queue_unittest.cc
+++ b/content/browser/compositor/buffer_queue_unittest.cc
@@ -28,10 +28,13 @@ class StubGpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
 
   // Overridden from gfx::GpuMemoryBuffer:
   void* Map() override { return nullptr; }
+  void* Map(size_t plane_index) override { return nullptr; }
   void Unmap() override {}
   bool IsMapped() const override { return false; }
+  size_t GetNumberOfPlanes() const override { return 1; }
   Format GetFormat() const override { return gfx::GpuMemoryBuffer::RGBX_8888; }
   uint32 GetStride() const override { return 0; }
+  uint32 GetStride(size_t plane_index) const override { return 0; }
   gfx::GpuMemoryBufferHandle GetHandle() const override {
     return gfx::GpuMemoryBufferHandle();
   }