[Android] Remove the dependency on TabContents.

chrome/browser/ui/tab_contents/tab_contents.h

Index: chrome/browser/ui/tab_contents/tab_contents.h
diff --git a/chrome/browser/ui/tab_contents/tab_contents.h b/chrome/browser/ui/tab_contents/tab_contents.h
index b66e0aa5c6837e6814acfc9986881d2581f8dfed..9d0b3c9b8edfbb700ffec92b4b0f2eaccb1ff1d9 100644
--- a/chrome/browser/ui/tab_contents/tab_contents.h
+++ b/chrome/browser/ui/tab_contents/tab_contents.h
@@ -76,10 +76,6 @@ class ZoomController;
 class OneClickSigninHelper;
 #endif
 
-namespace android_webview {
-class AwBrowserDependencyFactoryImpl;
-}
-
 namespace browser_sync {
 class SyncedTabDelegate;
 }
@@ -145,7 +141,6 @@ class TabContents : public content::WebContentsObserver {
     // more code to construct instances. Explicitly befriend those who currently
     // do so.
 
-    friend class android_webview::AwBrowserDependencyFactoryImpl;
     friend class BasePanelBrowserTest;
     friend class Browser;
     friend class BrowserCommandsTabContentsCreator;