Fix page zoom to be frame-centric for out-of-process frames.

content/browser/web_contents/web_contents_impl.h

Index: content/browser/web_contents/web_contents_impl.h
diff --git a/content/browser/web_contents/web_contents_impl.h b/content/browser/web_contents/web_contents_impl.h
index 77f73eab30e09edb9196b3b5000b5d75966a7f28..b24c8ea5f4856be24d9c27ed3b9542617416793a 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -224,6 +224,18 @@ class CONTENT_EXPORT WebContentsImpl
           const ui::AXTreeUpdate&)>;
   void RequestAXTreeSnapshot(AXTreeSnapshotCallback callback);
 
+  // Set a temporary zoom level for the frames associated with this WebContents.
+  // If |is_temporary| is true, we are setting a new temporary zoom level,
+  // otherwise we are clearing a previously set temporary zoom level.
+  void SetTemporaryZoomLevel(double level, bool is_temporary);
+  // Sets the zoom level for frames associated with this WebContents.

[alexmos, 2016/04/07 01:20:56]

nit: blank line above comment might be a bit more readable (also below)

[wjmaclean, 2016/04/07 12:55:36]

Done.

+  void UpdateZoom(double level);
+  // Sets the zoom level for frames associated with this WebContents if it
+  // matches |host| and (if non-empty) |scheme|.

[alexmos, 2016/04/07 01:20:56]

nit: clarify what it means to match |host| and |scheme| - e.g., "it matches" ->
"the main frame's host and scheme matches"

[wjmaclean, 2016/04/07 12:55:36]

Done.

+  void UpdateZoomIfNecessary(const std::string& scheme,
+                             const std::string& host,
+                             double level);
+
   // WebContents ------------------------------------------------------
   WebContentsDelegate* GetDelegate() override;
   void SetDelegate(WebContentsDelegate* delegate) override;