Browser Side Text Input State Tracking for OOPIF.

content/browser/renderer_host/render_widget_host_view_aura.cc

Index: content/browser/renderer_host/render_widget_host_view_aura.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_aura.cc b/content/browser/renderer_host/render_widget_host_view_aura.cc
index 1cd3d57f99d2d9089cea51f8c47ef15d1e7ea930..e0bec72697f8fd8c5ac91cb0d94c41595469a002 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura.cc
@@ -461,10 +461,6 @@ RenderWidgetHostViewAura::RenderWidgetHostViewAura(RenderWidgetHost* host,
       popup_parent_host_view_(NULL),
       popup_child_host_view_(NULL),
       is_loading_(false),
-      text_input_type_(ui::TEXT_INPUT_TYPE_NONE),
-      text_input_mode_(ui::TEXT_INPUT_MODE_DEFAULT),
-      text_input_flags_(0),
-      can_compose_inline_(true),
       has_composition_text_(false),
       accept_return_character_(false),
       last_swapped_software_frame_scale_factor_(1.f),
@@ -779,18 +775,6 @@ void RenderWidgetHostViewAura::SetKeyboardFocus() {
   }
 }
 
-RenderFrameHostImpl* RenderWidgetHostViewAura::GetFocusedFrame() {
-  RenderViewHost* rvh = RenderViewHost::From(host_);
-  if (!rvh)
-    return nullptr;
-  FrameTreeNode* focused_frame =
-      rvh->GetDelegate()->GetFrameTree()->GetFocusedFrame();
-  if (!focused_frame)
-    return nullptr;
-
-  return focused_frame->current_frame_host();
-}
-
 bool RenderWidgetHostViewAura::CanRendererHandleEvent(
     const ui::MouseEvent* event,
     bool mouse_locked,
@@ -1004,23 +988,17 @@ void RenderWidgetHostViewAura::SetIsLoading(bool is_loading) {
   UpdateCursorIfOverSelf();
 }
 
-void RenderWidgetHostViewAura::TextInputStateChanged(
-    const ViewHostMsg_TextInputState_Params& params) {
-  if (text_input_type_ != params.type ||
-      text_input_mode_ != params.mode ||
-      can_compose_inline_ != params.can_compose_inline ||
-      text_input_flags_ != params.flags) {
-    text_input_type_ = params.type;
-    text_input_mode_ = params.mode;
-    can_compose_inline_ = params.can_compose_inline;
-    text_input_flags_ = params.flags;
-    if (GetInputMethod())
-      GetInputMethod()->OnTextInputTypeChanged(this);
-  }
-  if (params.show_ime_if_needed && params.type != ui::TEXT_INPUT_TYPE_NONE) {
-    if (GetInputMethod())
-      GetInputMethod()->ShowImeIfNeeded();
-  }
+void RenderWidgetHostViewAura::NotifyTextInputStateChanged() {
+  RenderWidgetHostViewBase::NotifyTextInputStateChanged();
+
+  if (!GetInputMethod())
+    return;
+
+  GetInputMethod()->OnTextInputTypeChanged(this);
+
+  const TextInputState* state = current_text_input_state();
+  if (state->show_ime_if_needed && state->type != ui::TEXT_INPUT_TYPE_NONE)
+    GetInputMethod()->ShowImeIfNeeded();
 }
 
 void RenderWidgetHostViewAura::ImeCancelComposition() {
@@ -1643,7 +1621,7 @@ void RenderWidgetHostViewAura::ClearCompositionText() {
 }
 
 void RenderWidgetHostViewAura::InsertText(const base::string16& text) {
-  DCHECK(text_input_type_ != ui::TEXT_INPUT_TYPE_NONE);
+  DCHECK(current_text_input_state()->type != ui::TEXT_INPUT_TYPE_NONE);
   if (host_)
     host_->ImeConfirmComposition(text, gfx::Range::InvalidRange(), false);
   has_composition_text_ = false;
@@ -1664,19 +1642,19 @@ void RenderWidgetHostViewAura::InsertChar(const ui::KeyEvent& event) {
 }
 
 ui::TextInputType RenderWidgetHostViewAura::GetTextInputType() const {
-  return text_input_type_;
+  return current_text_input_state()->type;
 }
 
 ui::TextInputMode RenderWidgetHostViewAura::GetTextInputMode() const {
-  return text_input_mode_;
+  return current_text_input_state()->mode;
 }
 
 int RenderWidgetHostViewAura::GetTextInputFlags() const {
-  return text_input_flags_;
+  return current_text_input_state()->flags;
 }
 
 bool RenderWidgetHostViewAura::CanComposeInline() const {
-  return can_compose_inline_;
+  return current_text_input_state()->can_compose_inline;
 }
 
 gfx::Rect RenderWidgetHostViewAura::ConvertRectToScreen(