Add support to send optimal format as part of ScheduleOverlayPlane

gpu/GLES2/gl2extchromium.h

Index: gpu/GLES2/gl2extchromium.h
diff --git a/gpu/GLES2/gl2extchromium.h b/gpu/GLES2/gl2extchromium.h
index 51af9dc02bc2601036de2930c0fe0181dbdba33f..15524418042873edf7b791cbf4e542d34834ffa5 100644
--- a/gpu/GLES2/gl2extchromium.h
+++ b/gpu/GLES2/gl2extchromium.h
@@ -111,6 +111,10 @@ typedef void (
 #ifndef GL_CHROMIUM_gpu_memory_buffer_image
 #define GL_CHROMIUM_gpu_memory_buffer_image 1
 
+#ifndef GL_BGR
+#define GL_BGR 0x80E0
+#endif
+
 #ifndef GL_READ_WRITE_CHROMIUM
 #define GL_READ_WRITE_CHROMIUM 0x78F2
 #endif
@@ -783,6 +787,7 @@ GL_APICALL void GL_APIENTRY glUniformValuebufferCHROMIUM(GLint location,
 GL_APICALL void GL_APIENTRY
     glScheduleOverlayPlaneCHROMIUM(GLint plane_z_order,
                                    GLenum plane_transform,
+                                   GLuint storage_format,
                                    GLuint overlay_texture_id,
                                    GLint bounds_x,
                                    GLint bounds_y,
@@ -791,11 +796,13 @@ GL_APICALL void GL_APIENTRY
                                    GLfloat uv_x,
                                    GLfloat uv_y,
                                    GLfloat uv_width,
-                                   GLfloat uv_height);
+                                   GLfloat uv_height,
+                                   GLboolean handle_scaling);
 #endif
 typedef void(GL_APIENTRYP PFNGLSCHEDULEOVERLAYPLANECHROMIUMPROC)(
     GLint plane_z_order,
     GLenum plane_transform,
+    GLuint optimal_storage_format,
     GLuint overlay_texture_id,
     GLint bounds_x,
     GLint bounds_y,
@@ -804,7 +811,8 @@ typedef void(GL_APIENTRYP PFNGLSCHEDULEOVERLAYPLANECHROMIUMPROC)(
     GLfloat uv_x,
     GLfloat uv_y,
     GLfloat uv_width,
-    GLfloat uv_height);
+    GLfloat uv_height,
+    GLboolean scale_buffer);
 #endif /* GL_CHROMIUM_schedule_overlay_plane */
 
 #ifndef GL_CHROMIUM_schedule_ca_layer