Track composition range and character bounds on the browser side (Mac)

content/browser/renderer_host/render_widget_host_view_mac_unittest.mm

Index: content/browser/renderer_host/render_widget_host_view_mac_unittest.mm
diff --git a/content/browser/renderer_host/render_widget_host_view_mac_unittest.mm b/content/browser/renderer_host/render_widget_host_view_mac_unittest.mm
index 751ff9c86bdc46f7f5566c92d500f81f188457f7..b4eecea318e93a82317a96f56240090d31a7d047 100644
--- a/content/browser/renderer_host/render_widget_host_view_mac_unittest.mm
+++ b/content/browser/renderer_host/render_widget_host_view_mac_unittest.mm
@@ -279,6 +279,13 @@ class RenderWidgetHostViewMacTest : public RenderViewHostImplTestHarness {
     rwhv_mac_->Destroy();
   }
 
+  void ActivateViewWithTextInputManager(RenderWidgetHostViewBase* view,
+                                        ui::TextInputType type) {
+    TextInputState state;
+    state.type = type;
+    view->TextInputStateChanged(state);
+  }
+
  private:
   // This class isn't derived from PlatformTest.
   base::mac::ScopedNSAutoreleasePool pool_;
@@ -534,6 +541,7 @@ TEST_F(RenderWidgetHostViewMacTest, GetFirstRectForCharacterRangeCaretCase) {
 }
 
 TEST_F(RenderWidgetHostViewMacTest, UpdateCompositionSinglelineCase) {
+  ActivateViewWithTextInputManager(rwhv_mac_, ui::TEXT_INPUT_TYPE_TEXT);
   const gfx::Point kOrigin(10, 11);
   const gfx::Size kBoundsUnit(10, 20);
 
@@ -642,6 +650,7 @@ TEST_F(RenderWidgetHostViewMacTest, UpdateCompositionSinglelineCase) {
 }
 
 TEST_F(RenderWidgetHostViewMacTest, UpdateCompositionMultilineCase) {
+  ActivateViewWithTextInputManager(rwhv_mac_, ui::TEXT_INPUT_TYPE_TEXT);
   const gfx::Point kOrigin(10, 11);
   const gfx::Size kBoundsUnit(10, 20);
   NSRect rect;
@@ -775,6 +784,7 @@ TEST_F(RenderWidgetHostViewMacTest, UpdateCompositionMultilineCase) {
 // firstRectForCharacterRange:actualRange] are handled in a sane manner if they
 // arrive after the C++ RenderWidgetHostView is destroyed.
 TEST_F(RenderWidgetHostViewMacTest, CompositionEventAfterDestroy) {
+  ActivateViewWithTextInputManager(rwhv_mac_, ui::TEXT_INPUT_TYPE_TEXT);
   const gfx::Rect composition_bounds(0, 0, 30, 40);
   const gfx::Range range(0, 1);
   rwhv_mac_->ImeCompositionRangeChanged(