gpu: Refactor GpuMemoryBuffer framework for multi-process support.

android_webview/browser/gpu_memory_buffer_factory_impl.cc

Index: android_webview/browser/gpu_memory_buffer_factory_impl.cc
diff --git a/android_webview/browser/gpu_memory_buffer_factory_impl.cc b/android_webview/browser/gpu_memory_buffer_factory_impl.cc
index c4a6cac748e9049bc47f535831c0b0fb25e84b41..d1a15b300ca18019e56bc00e36455495b3e6ff6b 100644
--- a/android_webview/browser/gpu_memory_buffer_factory_impl.cc
+++ b/android_webview/browser/gpu_memory_buffer_factory_impl.cc
@@ -87,9 +87,8 @@ gfx::GpuMemoryBuffer* GpuMemoryBufferFactoryImpl::CreateGpuMemoryBuffer(
     size_t width,
     size_t height,
     unsigned internalformat) {
-  // For Android WebView we assume the |internalformat| will always be
-  // GL_RGBA8_OES.
-  CHECK_EQ(static_cast<GLenum>(GL_RGBA8_OES), internalformat);
+  // For Android WebView we assume the |internalformat| will always be GL_RGBA.
+  CHECK_EQ(static_cast<GLenum>(GL_RGBA), internalformat);
   CHECK(g_gl_draw_functions);
   int buffer_id = g_gl_draw_functions->create_graphic_buffer(width, height);
   if (!buffer_id)