Pass more things by const ref in SmartClip

Change-Id: I679eafa7719553792404d3c0549b5a7877d34c86
Reviewed-on: https://chromium-review.googlesource.com/791513Reviewed-by: Philip Rogers <pdr@chromium.org>
Commit-Queue: Daniel Cheng <dcheng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#520778}

third_party/WebKit/Source/core/frame/SmartClip.cpp

@@ -59,14 +59,6 @@ static Node* NodeInsideFrame(Node* node) {
   return nullptr;
 }
 
-IntRect SmartClipData::RectInViewport() const {
-  return rect_in_viewport_;
-}
-
-const String& SmartClipData::ClipData() const {
-  return string_;
-}
-
 SmartClip::SmartClip(LocalFrame* frame) : frame_(frame) {}
 
 SmartClipData SmartClip::DataForRect(const IntRect& crop_rect_in_viewport) {

third_party/WebKit/Source/core/frame/SmartClip.h

@@ -44,11 +44,11 @@ class CORE_EXPORT SmartClipData {
  public:
   SmartClipData() {}
 
-  SmartClipData(IntRect rect, String string)
+  SmartClipData(const IntRect& rect, const String& string)
       : rect_in_viewport_(rect), string_(string) {}
 
-  IntRect RectInViewport() const;
-  const String& ClipData() const;
+  const IntRect& RectInViewport() const { return rect_in_viewport_; }
+  const String& ClipData() const { return string_; }
 
  private:
   IntRect rect_in_viewport_;