cc: Adding support for RGBA_4444 tile textures

cc/output/direct_renderer.cc

Index: cc/output/direct_renderer.cc
diff --git a/cc/output/direct_renderer.cc b/cc/output/direct_renderer.cc
index c3a4d39b333ffa9cb63a66fd870d80b4e7903d80..51ac56a1d932e68ad95daee619701438539fa876 100644
--- a/cc/output/direct_renderer.cc
+++ b/cc/output/direct_renderer.cc
@@ -168,7 +168,8 @@ void DirectRenderer::DecideRenderPassAllocationsForFrame(
 
     const RenderPass* render_pass_in_frame = it->second;
     gfx::Size required_size = RenderPassTextureSize(render_pass_in_frame);
-    GLenum required_format = RenderPassTextureFormat(render_pass_in_frame);
+    ResourceFormat required_format =
+        RenderPassTextureFormat(render_pass_in_frame);
     CachedResource* texture = pass_iter->second;
     DCHECK(texture);
 
@@ -398,8 +399,8 @@ bool DirectRenderer::UseRenderPass(DrawingFrame* frame,
                enlarge_pass_texture_amount_.y());
   if (!texture->id() &&
       !texture->Allocate(size,
-                         RenderPassTextureFormat(render_pass),
-                         ResourceProvider::TextureUsageFramebuffer))
+                         ResourceProvider::TextureUsageFramebuffer,
+                         RenderPassTextureFormat(render_pass)))
     return false;
 
   return BindFramebufferToTexture(frame, texture, render_pass->output_rect);
@@ -420,8 +421,9 @@ gfx::Size DirectRenderer::RenderPassTextureSize(const RenderPass* render_pass) {
 }
 
 // static
-GLenum DirectRenderer::RenderPassTextureFormat(const RenderPass* render_pass) {
-  return GL_RGBA;
+ResourceFormat DirectRenderer::RenderPassTextureFormat(
+    const RenderPass* render_pass) {
+  return RGBA_8888;
 }
 
 }  // namespace cc