Adding support for per vertex opacity on textured layer

cc/heads_up_display_layer_impl.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/heads_up_display_layer_impl.h"
 
 #include <limits>
 
 #include "base/stringprintf.h"
 #include "cc/debug_colors.h"
@@ skipping 73 matching lines @@
 {
     if (!m_hudTexture->id())
         return;
 
     SharedQuadState* sharedQuadState = quadSink.useSharedQuadState(createSharedQuadState());
 
     gfx::Rect quadRect(gfx::Point(), bounds());
     gfx::Rect opaqueRect(contentsOpaque() ? quadRect : gfx::Rect());
     bool premultipliedAlpha = true;
     gfx::RectF uvRect(0, 0, 1, 1);
+    const float vertex_opacity[] = {1.0f, 1.0f, 1.0f, 1.0f};
     bool flipped = false;
     scoped_ptr<TextureDrawQuad> quad = TextureDrawQuad::Create();
-    quad->SetNew(sharedQuadState, quadRect, opaqueRect, m_hudTexture->id(), premultipliedAlpha, uvRect, flipped);
+    quad->SetNew(sharedQuadState, quadRect, opaqueRect, m_hudTexture->id(), premultipliedAlpha, uvRect, vertex_opacity, flipped);
     quadSink.append(quad.PassAs<DrawQuad>(), appendQuadsData);
 }
 
 void HeadsUpDisplayLayerImpl::updateHudTexture(ResourceProvider* resourceProvider)
 {
     if (!m_hudTexture->id())
         return;
 
     SkISize canvasSize;
     if (m_hudCanvas)
@@ skipping 268 matching lines @@
 
     canvas->restore();
 }
 
 const char* HeadsUpDisplayLayerImpl::layerTypeAsString() const
 {
     return "HeadsUpDisplayLayer";
 }
 
 }  // namespace cc