android: Use UIResource for overscroll glow

content/browser/android/edge_effect.cc

Index: content/browser/android/edge_effect.cc
diff --git a/content/browser/android/edge_effect.cc b/content/browser/android/edge_effect.cc
index 94e5b512e20505bf5ad12c59f9258e88f9fa41b1..364852d7910b95a852e0dffd0706c183ca506905 100644
--- a/content/browser/android/edge_effect.cc
+++ b/content/browser/android/edge_effect.cc
@@ -5,6 +5,7 @@
 #include "content/browser/android/edge_effect.h"
 
 #include "cc/layers/layer.h"
+#include "content/browser/android/overscroll_glow.h"
 
 namespace content {
 
@@ -143,27 +144,27 @@ void UpdateLayer(cc::Layer* layer,
 
 } // namespace
 
-EdgeEffect::EdgeEffect(scoped_refptr<cc::Layer> edge,
-                       scoped_refptr<cc::Layer> glow)
-  : edge_(edge)
-  , glow_(glow)
-  , edge_alpha_(0)
-  , edge_scale_y_(0)
-  , glow_alpha_(0)
-  , glow_scale_y_(0)
-  , edge_alpha_start_(0)
-  , edge_alpha_finish_(0)
-  , edge_scale_y_start_(0)
-  , edge_scale_y_finish_(0)
-  , glow_alpha_start_(0)
-  , glow_alpha_finish_(0)
-  , glow_scale_y_start_(0)
-  , glow_scale_y_finish_(0)
-  , state_(STATE_IDLE)
-  , pull_distance_(0) {
+EdgeEffect::EdgeEffect(scoped_ptr<OverscrollGlowLayerWrapper> edge,
+                       scoped_ptr<OverscrollGlowLayerWrapper> glow)
+    : edge_(edge.Pass()),
+      glow_(glow.Pass()),
+      edge_alpha_(0),
+      edge_scale_y_(0),
+      glow_alpha_(0),
+      glow_scale_y_(0),
+      edge_alpha_start_(0),
+      edge_alpha_finish_(0),
+      edge_scale_y_start_(0),
+      edge_scale_y_finish_(0),
+      glow_alpha_start_(0),
+      glow_alpha_finish_(0),
+      glow_scale_y_start_(0),
+      glow_scale_y_finish_(0),
+      state_(STATE_IDLE),
+      pull_distance_(0) {
   // Prevent the provided layers from drawing until the effect is activated.
-  DisableLayer(edge_.get());
-  DisableLayer(glow_.get());
+  DisableLayer(edge_->layer());
+  DisableLayer(glow_->layer());
 }
 
 EdgeEffect::~EdgeEffect() { }
@@ -173,8 +174,8 @@ bool EdgeEffect::IsFinished() const {
 }
 
 void EdgeEffect::Finish() {
-  DisableLayer(edge_.get());
-  DisableLayer(glow_.get());
+  DisableLayer(edge_->layer());
+  DisableLayer(glow_->layer());
   pull_distance_ = 0;
   state_ = STATE_IDLE;
 }
@@ -359,8 +360,8 @@ void EdgeEffect::ApplyToLayers(gfx::SizeF window_size,
   // An empty window size, while meaningless, is also relatively harmless, and
   // will simply prevent any drawing of the layers.
   if (window_size.IsEmpty()) {
-    DisableLayer(edge_.get());
-    DisableLayer(glow_.get());
+    DisableLayer(edge_->layer());
+    DisableLayer(glow_->layer());
     return;
   }
 
@@ -368,13 +369,21 @@ void EdgeEffect::ApplyToLayers(gfx::SizeF window_size,
   const int scaled_glow_height = static_cast<int>(
       std::min(glow_height * glow_scale_y_ * kGlowHeightToWidthRatio * 0.6f,
                glow_height * kMaxGlowHeight) + 0.5f);
-  UpdateLayer(
-      glow_.get(), edge, window_size, offset, scaled_glow_height, glow_alpha_);
+  UpdateLayer(glow_->layer(),
+              edge,
+              window_size,
+              offset,
+              scaled_glow_height,
+              glow_alpha_);
 
   // Edge
- const int scaled_edge_height = static_cast<int>(edge_height * edge_scale_y_);
-  UpdateLayer(
-      edge_.get(), edge, window_size, offset, scaled_edge_height, edge_alpha_);
+  const int scaled_edge_height = static_cast<int>(edge_height * edge_scale_y_);
+  UpdateLayer(edge_->layer(),
+              edge,
+              window_size,
+              offset,
+              scaled_edge_height,
+              edge_alpha_);
 }
 
 } // namespace content