Add YUV_420_BIPLANAR to gfx::BufferFormat.

content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.cc

Index: content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.cc
diff --git a/content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.cc b/content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.cc
index d869ef0d408d14608fbacc44ebb4392cad289d08..44e2dd5d6f24b3b21fbd15ce6af240810bcffd2b 100644
--- a/content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.cc
+++ b/content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.cc
@@ -108,6 +108,7 @@ bool GpuMemoryBufferImplSharedMemory::IsFormatSupported(
     case gfx::BufferFormat::RGBA_8888:
     case gfx::BufferFormat::BGRA_8888:
     case gfx::BufferFormat::YUV_420:
+    case gfx::BufferFormat::YUV_420_BIPLANAR:
       return true;
     case gfx::BufferFormat::RGBX_8888:
       return false;
@@ -149,7 +150,8 @@ bool GpuMemoryBufferImplSharedMemory::IsSizeValidForFormat(
     case gfx::BufferFormat::BGRA_8888:
     case gfx::BufferFormat::RGBX_8888:
       return true;
-    case gfx::BufferFormat::YUV_420: {
+    case gfx::BufferFormat::YUV_420:
+    case gfx::BufferFormat::YUV_420_BIPLANAR: {
       size_t num_planes = gfx::NumberOfPlanesForBufferFormat(format);
       for (size_t i = 0; i < num_planes; ++i) {
         size_t factor = SubsamplingFactor(format, i);