Revert 96162 - Revert 96149 - Enable/disable input methods according to...

Revert 96162 - Revert 96149 - Enable/disable input methods according to |text_input_type_| when a view is selected so that input methods don't eat keyboard shortcuts.

FindInPageTest.PrepopulateRespectBlank began to fail after I land this CL and I reverted it as r96162. I ran interactive_ui_tests on my machine and didn't see any failure so I try to land the CL again.

BUG=80772
TEST=manual

Review URL: http://codereview.chromium.org/7554005

TBR=bashi@chromium.org
Review URL: http://codereview.chromium.org/7604029

TBR=bashi@chromium.org
Review URL: http://codereview.chromium.org/7620005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@96329 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/renderer_host/render_widget_host_view_win.cc

@@ -209,6 +209,11 @@ LRESULT CALLBACK PluginWrapperWindowProc(HWND window, unsigned int message,
   return ::DefWindowProc(window, message, wparam, lparam);
 }
 
+bool ShouldEnableIME(ui::TextInputType type) {
+  return type != ui::TEXT_INPUT_TYPE_NONE &&
+    type != ui::TEXT_INPUT_TYPE_PASSWORD;
+}
+
 }  // namespace
 
 // RenderWidgetHostView --------------------------------------------------------
@@ -287,6 +292,10 @@ void RenderWidgetHostViewWin::DidBecomeSelected() {
     tab_switch_paint_time_ = TimeTicks::Now();
   is_hidden_ = false;
   EnsureTooltip();
+  if (ShouldEnableIME(text_input_type_))
+    ime_input_.EnableIME(m_hWnd);
+  else
+    ime_input_.DisableIME(m_hWnd);
   render_widget_host_->WasRestored();
 }
 
@@ -598,8 +607,7 @@ void RenderWidgetHostViewWin::ImeUpdateTextInputState(
   // as true. We need to support "can_compose_inline=false" for PPAPI plugins
   // that may want to avoid drawing composition-text by themselves and pass
   // the responsibility to the browser.
-  bool is_enabled = (type != ui::TEXT_INPUT_TYPE_NONE &&
-      type != ui::TEXT_INPUT_TYPE_PASSWORD);
+  bool is_enabled = ShouldEnableIME(type);
   if (text_input_type_ != type) {
     text_input_type_ = type;
     if (is_enabled)