[Android] Move zoom controls management into WebView

content/public/android/java/src/org/chromium/content/browser/ContentView.java

Index: content/public/android/java/src/org/chromium/content/browser/ContentView.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ContentView.java b/content/public/android/java/src/org/chromium/content/browser/ContentView.java
index 9ea4fb46387fd23084ea521ea9bd9c5fce9b135e..ae00c5b9469a3dfd40957ac0f170b6375a8bd626 100644
--- a/content/public/android/java/src/org/chromium/content/browser/ContentView.java
+++ b/content/public/android/java/src/org/chromium/content/browser/ContentView.java
@@ -635,14 +635,6 @@ public class ContentView extends FrameLayout
         mContentViewCore.onVisibilityChanged(changedView, visibility);
     }
 
-    void updateMultiTouchZoomSupport() {
-        mContentViewCore.updateMultiTouchZoomSupport();
-    }
-
-    public boolean isMultiTouchZoomSupported() {
-        return mContentViewCore.isMultiTouchZoomSupported();
-    }
-
     /**
      * Register the delegate to be used when content can not be handled by
      * the rendering engine, and should be downloaded instead. This will replace
@@ -742,17 +734,6 @@ public class ContentView extends FrameLayout
         return mContentViewCore.zoomReset();
     }
 
-    // Invokes the graphical zoom picker widget for this ContentView.
-    public void invokeZoomPicker() {
-        mContentViewCore.invokeZoomPicker();
-    }
-
-    // Unlike legacy WebView getZoomControls which returns external zoom controls,
-    // this method returns built-in zoom controls. This method is used in tests.
-    public View getZoomControlsForTest() {
-        return mContentViewCore.getZoomControlsForTest();
-    }
-
     /**
      * Return the current scale of the WebView
      * @return The current scale.