Almost finish moving context_menu_node_ from RenderViewImpl to RenderFrameImpl.

content/browser/renderer_host/render_widget_host_view_android.cc

Index: content/browser/renderer_host/render_widget_host_view_android.cc
===================================================================
--- content/browser/renderer_host/render_widget_host_view_android.cc	(revision 255633)
+++ content/browser/renderer_host/render_widget_host_view_android.cc	(working copy)
@@ -129,7 +129,7 @@
       needs_begin_frame_(false),
       is_showing_(!widget_host->is_hidden()),
       content_view_core_(NULL),
-      ime_adapter_android_(this),
+      ime_adapter_android_(new ImeAdapterAndroid(this)),
       cached_background_color_(SK_ColorWHITE),
       texture_id_in_layer_(0),
       last_output_surface_id_(kUndefinedOutputSurfaceId),
@@ -172,6 +172,7 @@
 
   if (resource_collection_.get())
     resource_collection_->SetClient(NULL);
+  ime_adapter_android_->RenderWidgetGone();
 }
 
 
@@ -429,7 +430,7 @@
 }
 
 long RenderWidgetHostViewAndroid::GetNativeImeAdapter() {
-  return reinterpret_cast<intptr_t>(&ime_adapter_android_);
+  return reinterpret_cast<intptr_t>(ime_adapter_android_.get());
 }
 
 void RenderWidgetHostViewAndroid::OnTextInputStateChanged(
@@ -511,11 +512,11 @@
 }
 
 void RenderWidgetHostViewAndroid::ImeCancelComposition() {
-  ime_adapter_android_.CancelComposition();
+  ime_adapter_android_->CancelComposition();
 }
 
 void RenderWidgetHostViewAndroid::FocusedNodeChanged(bool is_editable_node) {
-  ime_adapter_android_.FocusedNodeChanged(is_editable_node);
+  ime_adapter_android_->FocusedNodeChanged(is_editable_node);
 }
 
 void RenderWidgetHostViewAndroid::DidUpdateBackingStore(