Keep app default zoom level independent of the browser zoom level.

This was mostly done already with the defalut zoom level being stored
as a StoragePartition level preference. However when the renderer
preferences were set they did not use the default zoom of the correct
StoragePartition; the default StoragePartition's default zoom was
always used.

Due to this bug apps could easily have host specific zoom levels set
mistakenly. This change also removes any host specific zoom levels of
apps as they are started. If apps ever get the capability to zoom this
will need to be removed.

BUG=407333, 153568, 411073, 446759

Review URL: https://codereview.chromium.org/839023002

Cr-Commit-Position: refs/heads/master@{#311138}

1 files changed, 1 insertions, 5 deletions

diff --git a/chrome/browser/ui/apps/chrome_app_delegate.h b/chrome/browser/ui/apps/chrome_app_delegate.h
index e08e613..4e7c7d4 100644
--- a/chrome/browser/ui/apps/chrome_app_delegate.h
+++ b/chrome/browser/ui/apps/chrome_app_delegate.h
@@ -13,11 +13,6 @@
 #include "ui/base/window_open_disposition.h"
 #include "ui/gfx/geometry/rect.h"
 
-namespace content {
-class BrowserContext;
-class WebContents;
-}
-
 class ScopedKeepAlive;
 
 class ChromeAppDelegate : public extensions::AppDelegate,
@@ -35,6 +30,7 @@ class ChromeAppDelegate : public extensions::AppDelegate,
 
   // extensions::AppDelegate:
   void InitWebContents(content::WebContents* web_contents) override;
+  void RenderViewCreated(content::RenderViewHost* render_view_host) override;
   void ResizeWebContents(content::WebContents* web_contents,
                          const gfx::Size& size) override;
   content::WebContents* OpenURLFromTab(