Add FBO support in Android WebView

gpu/command_buffer/client/gl_in_process_context.h

Index: gpu/command_buffer/client/gl_in_process_context.h
diff --git a/gpu/command_buffer/client/gl_in_process_context.h b/gpu/command_buffer/client/gl_in_process_context.h
index 2d0754b227434091d085500a3f9a865f02287d42..7d26ffab8a72c3d08aa6226b3a64a3523291c6b8 100644
--- a/gpu/command_buffer/client/gl_in_process_context.h
+++ b/gpu/command_buffer/client/gl_in_process_context.h
@@ -9,6 +9,7 @@
 #include "base/compiler_specific.h"
 #include "gles2_impl_export.h"
 #include "ui/gfx/native_widget_types.h"
+#include "ui/gl/gl_surface.h"
 #include "ui/gl/gpu_preference.h"
 
 namespace gfx {
@@ -54,8 +55,20 @@ class GLES2_IMPL_EXPORT GLInProcessContext {
       bool share_resources,
       const char* allowed_extensions,
       const int32* attrib_list,
-      gfx::GpuPreference gpu_preference,
-      const base::Closure& callback);
+      gfx::GpuPreference gpu_preference);
+
+  // Create context with the provided GLSurface. All other arguments match
+  // CreateContext factory above.
+  static GLInProcessContext* CreateWithSurface(
+      scoped_refptr<gfx::GLSurface> surface,
+      bool is_offscreen,
+      const gfx::Size& size,
+      bool share_resources,
+      const char* allowed_extensions,
+      const int32* attrib_list,
+      gfx::GpuPreference gpu_preference);
+
+  virtual void SetContextLostCallback(const base::Closure& callback) = 0;
 
   virtual void SignalSyncPoint(unsigned sync_point,
                                const base::Closure& callback) = 0;