[Chromecast] Remove unused code in cast_content_renderer_client.

The need for the AddRendererNativeBindings has been removed internally.
Thus, we can remove this interface as well as CastRenderViewObserver.

BUG=None

R=alokp@chromium.org

Review URL: https://codereview.chromium.org/1769973003

Cr-Commit-Position: refs/heads/master@{#379758}

2 files changed, 0 insertions, 36 deletions

diff --git a/chromecast/renderer/cast_content_renderer_client.cc b/chromecast/renderer/cast_content_renderer_client.cc
index f6b7a77..c06c618 100644
--- a/chromecast/renderer/cast_content_renderer_client.cc
+++ b/chromecast/renderer/cast_content_renderer_client.cc
@@ -25,7 +25,6 @@
 #include "content/public/common/content_switches.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_view.h"
-#include "content/public/renderer/render_view_observer.h"
 #include "third_party/WebKit/public/platform/WebColor.h"
 #include "third_party/WebKit/public/web/WebFrameWidget.h"
 #include "third_party/WebKit/public/web/WebSettings.h"
@@ -72,31 +71,6 @@ void PlatformPollFreemem(void) {
 // though the comment of WebColor says it is in RGBA.
 const blink::WebColor kColorBlack = 0xFF000000;
 
-class CastRenderViewObserver : content::RenderViewObserver {
- public:
-  CastRenderViewObserver(CastContentRendererClient* client,
-                         content::RenderView* render_view);
-  ~CastRenderViewObserver() override {}
-
-  void DidClearWindowObject(blink::WebLocalFrame* frame) override;
-
- private:
-  CastContentRendererClient* const client_;
-
-  DISALLOW_COPY_AND_ASSIGN(CastRenderViewObserver);
-};
-
-CastRenderViewObserver::CastRenderViewObserver(
-    CastContentRendererClient* client,
-    content::RenderView* render_view)
-    : content::RenderViewObserver(render_view),
-      client_(client) {
-}
-
-void CastRenderViewObserver::DidClearWindowObject(blink::WebLocalFrame* frame) {
-  client_->AddRendererNativeBindings(frame);
-}
-
 }  // namespace
 
 CastContentRendererClient::CastContentRendererClient()
@@ -108,10 +82,6 @@ CastContentRendererClient::CastContentRendererClient()
 CastContentRendererClient::~CastContentRendererClient() {
 }
 
-void CastContentRendererClient::AddRendererNativeBindings(
-    blink::WebLocalFrame* frame) {
-}
-
 void CastContentRendererClient::RenderThreadStarted() {
   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 
@@ -168,9 +138,6 @@ void CastContentRendererClient::RenderViewCreated(
     // application running.
     webview->settings()->setOfflineWebApplicationCacheEnabled(false);
   }
-
-  // Note: RenderView will own the lifetime of its observer.
-  new CastRenderViewObserver(this, render_view);
 }
 
 void CastContentRendererClient::AddKeySystems(
diff --git a/chromecast/renderer/cast_content_renderer_client.h b/chromecast/renderer/cast_content_renderer_client.h
index 6350038..470e8a8 100644
--- a/chromecast/renderer/cast_content_renderer_client.h
+++ b/chromecast/renderer/cast_content_renderer_client.h
@@ -31,9 +31,6 @@ class CastContentRendererClient : public content::ContentRendererClient {
 
   ~CastContentRendererClient() override;
 
-  // Adds any platform-specific bindings to the current frame.
-  virtual void AddRendererNativeBindings(blink::WebLocalFrame* frame);
-
   // ContentRendererClient implementation:
   void RenderThreadStarted() override;
   void RenderViewCreated(content::RenderView* render_view) override;