Turn off computation of the interest rect in cc in synchronized paint mode.

third_party/WebKit/Source/web/LinkHighlightImpl.cpp

Index: third_party/WebKit/Source/web/LinkHighlightImpl.cpp
diff --git a/third_party/WebKit/Source/web/LinkHighlightImpl.cpp b/third_party/WebKit/Source/web/LinkHighlightImpl.cpp
index ce39f38634e0b32f3f239b45f5852dadee362d0e..b69d3c21298f597cb93d8d0da7366cafc9636419 100644
--- a/third_party/WebKit/Source/web/LinkHighlightImpl.cpp
+++ b/third_party/WebKit/Source/web/LinkHighlightImpl.cpp
@@ -53,6 +53,7 @@
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkPictureRecorder.h"
 #include "third_party/skia/include/utils/SkMatrix44.h"
+#include "ui/gfx/geometry/rect.h"
 #include "web/WebLocalFrameImpl.h"
 #include "web/WebSettingsImpl.h"
 #include "web/WebViewImpl.h"
@@ -260,14 +261,14 @@ bool LinkHighlightImpl::computeHighlightLayerPathAndPosition(const LayoutBoxMode
     return pathHasChanged;
 }
 
-void LinkHighlightImpl::paintContents(WebDisplayItemList* webDisplayItemList, const WebRect& webClipRect, WebContentLayerClient::PaintingControlSetting paintingControl)
+void LinkHighlightImpl::paintContents(WebDisplayItemList* webDisplayItemList, gfx::Rect* recordingViewport, WebContentLayerClient::PaintingControlSetting paintingControl)
 {
     if (!m_node || !m_node->layoutObject())
         return;
 
     SkPictureRecorder recorder;
-    SkCanvas* canvas = recorder.beginRecording(webClipRect.width, webClipRect.height);
-    canvas->translate(-webClipRect.x, -webClipRect.y);
+    SkCanvas* canvas = recorder.beginRecording(recordingViewport->width(), recordingViewport->height());
+    canvas->translate(-recordingViewport->x(), -recordingViewport->y());
 
     SkPaint paint;
     paint.setStyle(SkPaint::kFill_Style);