Remove BrowserPlugin tests (only one test remaining with existing coverage)

content/renderer/browser_plugin/browser_plugin_manager_impl.cc

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "content/renderer/browser_plugin/browser_plugin_manager_impl.h"
-
-#include "content/common/browser_plugin/browser_plugin_constants.h"
-#include "content/common/browser_plugin/browser_plugin_messages.h"
-#include "content/common/cursors/webcursor.h"
-#include "content/public/renderer/browser_plugin_delegate.h"
-#include "content/renderer/browser_plugin/browser_plugin.h"
-#include "content/renderer/render_thread_impl.h"
-#include "ui/gfx/point.h"
-
-namespace content {
-
-BrowserPluginManagerImpl::BrowserPluginManagerImpl(RenderViewImpl* render_view)
-    : BrowserPluginManager(render_view) {
-}
-
-BrowserPluginManagerImpl::~BrowserPluginManagerImpl() {
-}
-
-BrowserPlugin* BrowserPluginManagerImpl::CreateBrowserPlugin(
-    RenderViewImpl* render_view,
-    blink::WebFrame* frame,
-    scoped_ptr<BrowserPluginDelegate> delegate) {
-  return new BrowserPlugin(render_view, frame, delegate.Pass());
-}
-
-bool BrowserPluginManagerImpl::Send(IPC::Message* msg) {
-  return RenderThread::Get()->Send(msg);
-}
-
-bool BrowserPluginManagerImpl::OnMessageReceived(
-    const IPC::Message& message) {
-  if (BrowserPlugin::ShouldForwardToBrowserPlugin(message)) {
-    int browser_plugin_instance_id = browser_plugin::kInstanceIDNone;
-    // All allowed messages must have |browser_plugin_instance_id| as their
-    // first parameter.
-    PickleIterator iter(message);
-    bool success = iter.ReadInt(&browser_plugin_instance_id);
-    DCHECK(success);
-    BrowserPlugin* plugin = GetBrowserPlugin(browser_plugin_instance_id);
-    if (plugin && plugin->OnMessageReceived(message))
-      return true;
-  }
-
-  return false;
-}
-
-void BrowserPluginManagerImpl::DidCommitCompositorFrame() {
-  IDMap<BrowserPlugin>::iterator iter(&instances_);
-  while (!iter.IsAtEnd()) {
-    iter.GetCurrentValue()->DidCommitCompositorFrame();
-    iter.Advance();
-  }
-}
-
-}  // namespace content