Browser Side Text Input State Tracking for OOPIF.

content/browser/renderer_host/render_widget_host_delegate.h

Index: content/browser/renderer_host/render_widget_host_delegate.h
diff --git a/content/browser/renderer_host/render_widget_host_delegate.h b/content/browser/renderer_host/render_widget_host_delegate.h
index aa38066ec28b62ea9488ab6ddb2759cfa7d6bdbb..440584df74d55acb3ee717b478ad4c4c2d15201b 100644
--- a/content/browser/renderer_host/render_widget_host_delegate.h
+++ b/content/browser/renderer_host/render_widget_host_delegate.h
@@ -31,7 +31,9 @@ namespace content {
 class BrowserAccessibilityManager;
 class RenderWidgetHostImpl;
 class RenderWidgetHostInputEventRouter;
+class RenderWidgetHostViewBase;
 struct NativeWebKeyboardEvent;
+struct TextInputState;
 
 //
 // RenderWidgetHostDelegate
@@ -132,6 +134,16 @@ class CONTENT_EXPORT RenderWidgetHostDelegate {
   virtual RenderWidgetHostImpl* GetFocusedRenderWidgetHost(
       RenderWidgetHostImpl* receiving_widget);
 
+  // Returns the current value of text input state. This should be the value
+  // obtained from the focused RWHV.
+  virtual const TextInputState* GetTextInputState();
+
+  // This method is called by any RWHV which receives an IPC regarding a change
+  // in the text input state. The IPC might or might not have lead to a change
+  // in state but this method must be called for IME related logic.
+  virtual void UpdateTextInputState(RenderWidgetHostViewBase* rwhv,
+                                    bool text_input_state_changed) {}
+
   // Notification that the renderer has become unresponsive. The
   // delegate can use this notification to show a warning to the user.
   virtual void RendererUnresponsive(RenderWidgetHostImpl* render_widget_host) {}
@@ -167,12 +179,12 @@ class CONTENT_EXPORT RenderWidgetHostDelegate {
   // Notification that the widget has lost the mouse lock.
   virtual void LostMouseLock(RenderWidgetHostImpl* render_widget_host) {}
 
-  // Called when the widget has sent a compositor proto.  This is used in Btlimp
+  // Called when the widget has sent a compositor proto.  This is used in Blimp
   // mode with the RemoteChannel compositor.
   virtual void ForwardCompositorProto(RenderWidgetHostImpl* render_widget_host,
                                       const std::vector<uint8_t>& proto) {}
 
-  // Called when the visibility of the RenderFrameProxyHost in outter
+  // Called when the visibility of the RenderFrameProxyHost in outer
   // WebContents changes. This method is only called on an inner WebContents and
   // will eventually notify all the RenderWidgetHostViews belonging to that
   // WebContents.