cc: Use gfx:: Geometry types for positions, bounds, and related things.

cc/layer_tree_host.h

Index: cc/layer_tree_host.h
diff --git a/cc/layer_tree_host.h b/cc/layer_tree_host.h
index c80e79d019e081e833e2f999b83c401e33828c81..7475ccba33317ecedcd1636eb2dc9ff2a731630b 100644
--- a/cc/layer_tree_host.h
+++ b/cc/layer_tree_host.h
@@ -7,7 +7,6 @@
 
 #include <limits>
 
-#include "IntRect.h"
 #include "base/basictypes.h"
 #include "base/hash_tables.h"
 #include "base/memory/ref_counted.h"
@@ -23,6 +22,7 @@
 #include "cc/rendering_stats.h"
 #include "cc/scoped_ptr_vector.h"
 #include "third_party/skia/include/core/SkColor.h"
+#include "ui/gfx/rect.h"
 
 #if defined(COMPILER_GCC)
 namespace BASE_HASH_NAMESPACE {
@@ -38,6 +38,7 @@ struct hash<WebKit::WebGraphicsContext3D*> {
 namespace cc {
 
 class FontAtlas;
+class IntRect;
 class Layer;
 class LayerTreeHostImpl;
 class LayerTreeHostImplClient;
@@ -63,9 +64,9 @@ struct LayerTreeSettings {
     bool renderVSyncEnabled;
     double refreshRate;
     size_t maxPartialTextureUpdates;
-    IntSize defaultTileSize;
-    IntSize maxUntiledLayerSize;
-    IntSize minimumOcclusionTrackingSize;
+    gfx::Size defaultTileSize;
+    gfx::Size maxUntiledLayerSize;
+    gfx::Size minimumOcclusionTrackingSize;
 
     bool showDebugInfo() const { return showPlatformLayerTree || showFPSCounter || showDebugRects(); }
     bool showDebugRects() const { return showPaintRects || showPropertyChangedRects || showSurfaceDamageRects || showScreenSpaceRects || showReplicaScreenSpaceRects || showOccludingRects; }
@@ -166,10 +167,10 @@ public:
 
     const LayerTreeSettings& settings() const { return m_settings; }
 
-    void setViewportSize(const IntSize& layoutViewportSize, const IntSize& deviceViewportSize);
+    void setViewportSize(const gfx::Size& layoutViewportSize, const gfx::Size& deviceViewportSize);
 
-    const IntSize& layoutViewportSize() const { return m_layoutViewportSize; }
-    const IntSize& deviceViewportSize() const { return m_deviceViewportSize; }
+    const gfx::Size& layoutViewportSize() const { return m_layoutViewportSize; }
+    const gfx::Size& deviceViewportSize() const { return m_deviceViewportSize; }
 
     void setPageScaleFactorAndLimits(float pageScaleFactor, float minPageScaleFactor, float maxPageScaleFactor);
 
@@ -251,8 +252,8 @@ private:
 
     LayerTreeSettings m_settings;
 
-    IntSize m_layoutViewportSize;
-    IntSize m_deviceViewportSize;
+    gfx::Size m_layoutViewportSize;
+    gfx::Size m_deviceViewportSize;
     float m_deviceScaleFactor;
 
     bool m_visible;